How to get a Brocade switch configured for Dell EMC SRS (ESRS)

Perform a

esrsconfig -show

to check whether the settings are saved to te switch. If the switch shows this output:

fcsw-01:admin> esrsconfig –show

ESRS SERVER AND PRODUCT CONFIGURATION
=======================================

ESRS Server IP: 10.20.30.40
ESRS Server Port: 9443
Product Serial Number: BRCCCD1946R04G
Product Model Number: SWITCH-BROCADE-B-GW
Status: Device is not Managed by ESRS

ESRS is not yet active.

To activate, the switch needs to be added to the ESRS_VE config by using this command:

esrsconfig –add  -user <DELL EMC_username> -password <DELL EMC_password>

the output should be:

Request Approved

Note:    Use the username and password which is associated with the DELL EMC account credentials.

Now the status should switch to

Device is manged by ESRS   (esrsconfig  – -show)

This could take up to 5 minutes.

To check if the device is actually known to Dell EMC, contact the Dell EMC CE to check if the device call home is received at their end. Use the following command to issue a test dial home:

esrsconfig –testcall

How to match an Windows (HyperV) disk to a SAN attached disk using the wwn

Hard Drive

Where do I find the wwn of a disk in Windows / HyperV? That’s the question.

There are a number of identifiers to find out which LUN is which disk, but the only undeniably unique number to find out which disk is which LUN is by using the globally unique wwn number of a LUN. The question is: “where can I find the wwn of a disk in HyperV?”

The LUN number, as assigned by the storage array can be found by using diskpart:

Read more »

How to list the naa-numbers of LUNs and VMware VMFSs on a Dell EMC Unity system

EMC Unity

In the Unity the naa numbers (wwn) are listed in the “block” section, but not in the VMware section. If you view the LUNs from the host perspective, the naa numbers are visible, but in the list of LUNs  would have been easier. You can list all details from LUNs and datastores on the CLI by using the uemcli commands:

uemcli -d 10.11.12.13 -u Local\admin -p [password] /stor/prov/luns/lun show -detail > unity.txt
uemcli -d 10.11.12.13 -u Local\admin -p [password] /stor/prov/vmware/vmfs show -detail >> unity.txt

Now simply open the unity.txt file and voila: there they are!

New Dell EMC Unity lineup: Unity XT 380F, 480F, 680F and 880F?

While looking for something totally different I stumbled on a few new Unity XT (?) model numbers.

On this dellemc.com website I spotted some Chinese publication on this new model.

[edit] The new and working website is now working: www.dellemc.com.

None of the Links actually work (I checked), but I did find some details on another website: https://dellstoragevr.dell.com/dell-emc-unity-xt-storage/:

There’s also a Unity XT simulator (in Chinese, which is a bit rusty on my end, I admit): https://www.dellemc.com/zh-cn/storage/all-flash-unity-simulator/index.htm#scroll=off, but when playing the video it appears that’s about the current model.

I’m curious when more details will come out and the links actually start working

Cisco MDS CLI commands when checking for defects or signal degradation

Cisco MDS

Checking the environment of a switch:

  • show environment temp = what are the temperatures of the intake(s) and outlet(s)
  • show environment power = are the PSUs still working fine?
  • show environment fan = are the fans still working fine?

Checking for errors and signal degradation

  • show interface fc1/10 counters = show all standard counters for port fc1/10
  • show interface fc1/10 counters details = show the detailed counters for port fc1/10
  • show interface counters = show all standard counters for all ports
  • show interface detail-counters = show the detailed counters for all ports
  • show interface detail-counters | i CRC = show the detailed counters for all ports which contain the text “CRC”
  • show interface transceiver calibrations = show the specs of all SFPs
  • show interface transceiver details = show the specs and power details of all SFPs
  • show interface transceiver details | i “x Power” = show the current Rx/Tx power of all SFPs

Common knowledges dictates that fiber optice patches need to be cleaned with proper equipment to prevent unnecessary signal loss. See this blog post for more details on how and why to keep optic cables clean.

How to enable a replica-LUN on Unity

EMC Unity

LUN-replication on Unity works slightly different than it previously did on VNX or even Clariion. In these older generations, when you deleted the mirrorview Mirror Group, both the primary and secondary LUNs became usable as separate entities.

In Unity the secondary LUN is a different beast. First of all: in Unity you can only set up replication from the primary Unity/LUN. The process on the source-Unity will create a LUN-replica and a replication session on both Unitys.

But what happens when you need hosts to access the secondary LUN? A failover works as designed and the previous secondary LUN becomes writable, but when you break the replication session, the replica-LUN has a flag that needs to be reset, but you’ll need the CLI to do that. This is how I did it:

  • In Unisphere I listed all LUNs and I made sure to include the “CLI ID” column
  • I noticed the ID of the LUN I need to grant access to is “res_56”
  • I started PUTTY and made sure logging to a file was configured so I could easily browse / search the possibly large amount of data some commands can produce, especially “-detail” commands tend to be very explicit
  • Log in as the “service” user to the Unity command line

Read more »

How to expand a LUN on VNX using the CLI

Once in a while you come across a storage system that cannot be managed through the GUI or you just want to script or use the CLI to perform management tasks on a VNX. Recently I came across an old VNX2 which GUI wasn’t responding the way I’d like, so I decided to use the CLI instead.

In this particular case I needed to expand a LUN.

First I listed the current size:

naviseccli -h [SPA/B ip#] -user [user] -password [password] -scope [scope] getlun [LUN#]

Then I expanded the LUN to the new size:

naviseccli -h [SPA/B ip#] -user [user] -password [password] -scope [scope] lun -expand -l [LUN#] -capacity [new capacity] -sq [mb/gb/tb/bc]

Pay attention to the number and the prefix! It could be a lot of work if you needed to resize a LUN from 50GB to 60GB and instead GB, you used TB…..

And finally I checked if the new size was actually available:

naviseccli -h [SPA/B ip#] -user [user] -password [password] -scope [scope] getlun [LUN#]

Sometimes CLI is so much easier than the GUI!

Read more »

How to remove an offline VNX from a Unisphere domain

When decommissioning a VNX, I recently forgot to remove the array from the existing domain. After the VNX was “unracked and unstacked” I saw my mistake and tried to remove it from the domain by using the “add/remove systems” in Unisphere, but the remove-button was grayed out. Even engineering mode didn’t help me.

There is another way to remove unwanted VNXs from a domain! You might have guessed it already, because it’s by using the command line!

First you’ll have to find out what existing VNX is the domain master. This can be done in Unisphere by looking up the current master. Click on “Domains” followed by “Select Domain Master”.

The outcome will show you the list of domain in the domain as well as the current master.

Now you can open a command line box and enter the following command to deleted the unwanted VNX from the domain:

naviseccli -Address -User -Password -Scope 2 domain -remove

Changing the time of Cisco DCNM

You’ve just deployed the DCNM appliance and you notice that the reports are displayed in the PDT timezone format. How do you change this into your own timezone?

For this you can log on to the command line of the appliance using SSH.

Check if DNS is working by performing a ping to your favorite NTP server.

To edit your timezone settings use your favorite editor (like “vi”).

vi /etc/ntp.conf

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
server 0.centos.pool.ntp.org iburst
server 1.centos.pool.ntp.org iburst
server 2.centos.pool.ntp.org iburst
server 3.centos.pool.ntp.org iburst

If you want to use your own NTP server, put a hashtag in front of the 4 example servers in the config file and put your own NTP server in.

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
ntp.mycompany.com iburst

The “iburst” parameter will try 8 times to collect new time info if necessary, instead of the default, which is only once per interval.

To change the timezone, remove the /etc/localtime file and create a new symbolic link to the file you need.

rm /etc/localtime

The list of location files can be found here:

/usr/share/zoneinfo

for example “Europe/Amsterdam” would be the file /usr/share/zoneinfo/Europe/Amsterdam. You can simply list the available locations by listing the available files in these folders.

ln -s /usr/share/zoneinfo/Europe/Amsterdam localtime

Now restart the NTP daemon:

service ntpd restart

And check the current date and time:

[email protected] etc]# date
Tue Jun 19 13:22:06 CEST 2018
[[email protected] etc]# date
Tue Jun 19 13:26:00 CEST 2018
[[email protected] etc]#

How to find out the LUN id of a Windows disk

Hard Drive

Attaching multiple LUNs to a Windows host and later trying to figure out which LUN is which can be a drag. I found out that using the “details disk” command in diskpart can help you finding backup the right LUN:

 

diskpart

list disk

select disk 19 (or whatever drive you want to see the details of)

detail disk

HITACHI DF600F  Multi-Path Disk Device
Disk ID: 00000000
Type   : FIBRE
Status : Online
Path   : 0
Target : 2
LUN ID : 7
Location Path : UNAVAILABLE
Current Read-only State : Yes
Read-only  : Yes
Boot Disk  : No
Pagefile Disk  : No
Hibernation File Disk  : No
Crashdump Disk  : No
Clustered Disk  : No

There are no volumes.

 

So in this particular case the Host LUN id was 7. This should help you along a bit 🙂

Dell Technologies World 2018, here I come!

It’s that time of the year again: Las Vegas time! This year I once again got an invite from Dell EMC to visit this yearly conference. It’s less than two weeks before the event, but I already have a full agenda: from networking with the Dutch in the “Dutch Delegation” to a super secret meeting with the Dell EMC Customer Council and maybe even some interviews!

Remember last year? Well, here’s a quote of mine as a reminder:

Let’s see if we can do some more of that this year 😉

So what are my plans this time?

I’m very lucky to get a direct flight for once. I’ll be flying from Köln this time on a Saturday and it’s a direct flight as well! I’ll be traveling with a few colleagues of mine and some of them are DT World / Las Vegas virgins, so that’s going to be a culture shock for them!! Anyway, we’re here to help them get through it all in one piece so they’ll get the most efficient use of their time during one of the most interesting technology events this year.

What are my expectations and plans for this year? Well, I’m always looking out for big announcements, like the mega launch back in 2013 with the VNX2 in Milan or any other really cool new products. And it’s been a while since we had a really cool announcement. I’m hoping for news on a possible merger between the Dell SC-series and EMC Unity. There’s much to improve in that area, so I’m keeping my fingers crossed for that. And when was the last time we got a new VMAX? That must have been back in 2014 or so! Unity was in 2016, XtremeIO X2 was in 2017, but where did DSSD go? Every competitor now has NVMe storage, but what about legacy EMC products? I’m expecting a lot in this area and “in memory computing” as well. There was a lot going on back in 2014, but the hype is over, or is it? I’m dying to see new developments in the flash side of things. Will flash finally be able to catch up to the current CPU speeds and remove SAAB (storage as a bottleneck)?

So what does my agenda look like?

Saturday April 28

  • Flying on Saturday afternoon April 28 and checking in in the Linq hotel
  • Hanging out, have dinner with my fellow Open Line coleagues and try to stay awake until 10 or 11PM
  • A subset of the Open Line delegation is going to a party at the Hakkasan at MGM Grand, but I’m skipping that. It starts at 10:30 PM and with the 9 hour time difference and the very busy week ahead, that’s a tad too much for me. I’m getting old, yes, I know.

Sunday April 29

  • Sleeping a bit late on Sunday, get breakfast and get ready for the first Dutch Delegation activity: Scooter ride through Red Rock Canyon
  • I’m skipping the BBQ under the stars in Red Rock canyon because of the…
  • Customer Reference group appreciation event at the TopGolf
  • Drinks at Gilley’s bar with my fellow Open Line colleagues

Monday April 30

  • Breakfast in the Sands basement from 7 to 8:30 / get ready for 4 days of hectic DT World
  • 10AM: Keynote with Michael Dell
  • 11:30AM: Analyst lunch
  • 1PM: green screen interview
  • Breakout sessions / labs
  • 6PM: Grand opening of the Solutions Pavillion
  • 9:30PM: meet-up with old and new friends

Tuesday May 1

  • Breakfast with my friend Gina Minks
  • Breakout sessions / labs
  • VCE exam
  • Proven Professional party at the Public House from 16:30 – 18:30
  • 8PM – 10PM: Partner appreciation party at the Wynn Club XS

Wednesday May 2

  • Breakfast in the Sands basement from 7 to 8:30
  • Breakout sessions / labs
  • Dell EMC Heroes reception (Palazzo C/D) from 3PM to 5PM
  • Solutions Expo Happy Hour from 4PM to 5PM???
  • Customer appreciation party featuring: STING!!!! from 8PM to 10:30PM

Thursday May 3

  • TAP – VMAX Technical Advisory Panel 8AM to 12PM
  • The last set of breakout sessions
  • Visiting Las Vegas North Premium Outlets to get the shopping list completed for my women back home
  • Closing Dutch Delegation happy hour

Friday May 4 (Star Wars day = May the 4th be with you)

Saturday May 5 (Revenge of the fifth)

  • Mini road trip to … Red Rock Canyon / Hoover dam / Valley of Fire?
  • We might even choose from this wonderful list: https://www.jenreviews.com
  • Dinner with the last survivors
  • Flying home at 10PM or so (luckily a direct flight once again)

Sunday May 6

  • 6PM Arriving “home” in Köln, Germany
  • 7PM picking up lugage and driving home
  • 8PM: home at last

Format of CSV on Hyper-V hosts is very slow

Hard Drive

When formatting a newly added disk (LUN) to Hyper-V, often you’ll notice the formatting takes forever. Dell EMC therefore advises to disable VAAI on VMware hosts for the same issue, however modern VMware hosts don’t seem to have this problem. Hyper-V however still have this issue. To disable the UNMAP / TRIM from happening, use the following command:

fsutil behavior set DisableDeleteNotify 1

After formatting was performed, you’ll need to re-enable UNMAP / TRIM by issuing the following command:

fsutil behavior set DisableDeleteNotify 0

 

How to set the DNS server in a Brocade switch

In order to do DNS lookups in a Brocade SAN switch (for example to read the NTP server’s time), you need to configure DNS first.

By using the command “dnsconfig”, you can configure which 2 DNS servers the switch can use to do lookups:

dnsconfig

Now you see a 4-item menu:

Enter option
1 Display Domain Name Service (DNS) configuration
2 Set DNS configuration
3 Remove DNS configuration
4 Quit
Select an item: (1..4) [4]

Use option 1 to display the current configuration. If you need to add 2 DNS servers, choose option 2:

Enter Domain Name: [] 50mu.net
Enter Name Server IP address in dot/colon notation: [] 172.18.2.11
Enter Name Server IP address in dot/colon notation: [] 172.19.3.111
DNS parameters saved successfully

Now choose option 1 to see the current configuration:

Enter option
1 Display Domain Name Service (DNS) configuration
2 Set DNS configuration
3 Remove DNS configuration
4 Quit
Select an item: (1..4) [4] 1

Domain Name Server Configuration Information
____________________________________________

Domain Name = 50mu.net
Name Server IP Address = 172.18.2.11
Name Server IP Address = 172.19.3.111

Now enter option 4 to leave the configuration tool:

Enter option
1 Display Domain Name Service (DNS) configuration
2 Set DNS configuration
3 Remove DNS configuration
4 Quit
Select an item: (1..4) [4] 4

SAN-switch-12:admin> ping www.50mu.net
PING www.50mu.net (37.97.155.181): 56 octets data
64 octets from 137.97.155.181: icmp_seq=0 ttl=128 time=6.1 ms
64 octets from 37.97.155.181: icmp_seq=1 ttl=128 time=2.7 ms
64 octets from 37.97.155.181: icmp_seq=2 ttl=128 time=2.7 ms

Cisco DCNM server unresponsive

Cisco MDS

You’re running a DCNM virtual appliance and when you’re trying to log on, it looks like the appliance’s webserver is no longer active.

Connect to the Linux prompt of the appliance and do the following:

Stop DCNM services:

/usr/local/cisco/dcm/dcnm/bin/stopLANSANServer.sh

Open the psql prompt:

/usr/local/cisco/dcm/db/bin/psql dcmdb

log on with root password (user root is assumed)

Type the command:

VACUUM FULL ANALYZE VERBOSE;

This will produce tons of output, but just let it run and eventually it all ends and you just need to start the DCNM services again.

When done, quit the psql prompt:

dcmdb=> \q

Start DCNM services:

/usr/local/cisco/dcm/dcnm/bin/startLANSANServer.sh

Source: cisco.com

Reclaim thin provisioned space in VMware datastore

We were using a portable storage array as temporary storage array to store data from an older array that had to be reconfigured. Capacity was quite an issue and everything would barely fit (with dedupe and compression doing its best on the Dell EMC XtremIO we were using for this), but we discovered that provisioned space wasn’t immediately reclaimed, so we got a bit into trouble when space wasn’t immediately reclaimed when data was deleted from a VMware version 5 datastore.

We were facing two options:

  • Datastore VMFS version 6: Unmap automatically every 12 hours (not 100% sure about this interval)
  • Datastore VMFS version 5: Unmap manually from the ESXi command line:

esxcli storage vmfs unmap -l XIO-05-VMFS-013

Before:

After running the command “esxcli storage vmfs unmap -l XIO-05-VMFS-013” and a few hours of patience and waiting:

Source: : https://kb.vmware.com

Brocade SAN Switch commands that prove to be very useful

Brocade commands are usually very easy to find out. Simply type “help” and look for the command you think you need, but what exactly does each command do? Here’s a list:

Info

uptime                          – Same as unix uptime
date                              – Same as unix date
version                          – Gives versions of firmwares & OS

Hardware State

faultshow                     – Show switch faults
fanshow                       – Show switch FAN faults
psshow                        – Show switch POWER SUPPLY faults
tempshow                    – Show switch TEMPERATURE values
switchstatusshow          – Overall status of switch

Config

agtcfgshow                  – Show SNMP config
configshow                  – Show switch config
gbicshow                     – Show GBIC slots and serial numbers
licenseshow                 – Show license data
supportshow                – Like Sun’s explorer – gets many configs at once
switchshow                  – Show switch ports and connections
zoneshow                    – Show zone and switch aliases

IP

bcastshow                   – Show broadcast routing
ifmodeshow                 – show interface mode (duplex)
ifshow                         – Like unix netstat -s
ipaddrshow                  – Like unix netstat -i
interfaceshow               – Like unix ndd

Performance

ifshow                          – Like unix netstat -s
portperfshow                – Show interface mode (duplex)
portshow #                  – Show stats on a port
portrouteshow #           – Show routes on a port
portstatsshow #            – Show stats (netstat -s) on a port

Misc Show

diagshow                     – Show diagnostics – paged output
errdump                      – Show diagnostics – no paged output
fabricshow                   – Show fabric
fspfshow                      – Show FSPF protocol info
mqshow                       – Show queues
nbrstateshow                – Show FSPF neighbor states
nsshow                        – Show name servers
nsallshow                     – Show all name servers
porterrshow                  – Like mpstat – shows port info
switchstatuspolicyshow  – Show config at when errors are flagged

 

Brocade Data Collection

There are 2 types of Data Collection associated with Brocade switches, “supportshow” and “supportsave”.

If the problem is related to basic “port issues”, a “supportshow” is sufficient. However, a more complex problem that involves Zoning, Performance, Reboots, CP Failovers, Fabric wide problems etc, requires a “SupportSave” type of collection. If the problem is multiswitch related (ISL connections, long distance configurations etc.) we need the supportsave from all relevant switches in the fabric.

The amount and type of information displayed in a supportshow output is depending on the type of switch as well as the collection options enabled in the switch configuration. This can be configured with the “supportshowcfgenable [option]” and “supportshowcfgdisable [option]”.

The output from the “supportshowcfgshow” command shows which subscripts will be enabled. The default groups are always enabled. Only on special occasions you will be asked to enable additional groups if necessary.

 

Performance and Intermittent Error Related Issues

If there is no sign of any obvious physical issue there might be link related problems which can identify performance problems and/or protocol related errors. Brocade counters are cumulative and keep doing so until a certain counter wraps, a switch reboots or the statistics are manually cleared.

Storage vendors for example require in these circumstances that a new baseline is created, a certain run-time has been achieved and separate commands are submitted against the suspected switch or switches.

To create a new baseline with cleared counters do the following:

  1. Log in to the switch via Telnet or SSH
  2. Submit the “statsclear” command
  3. Submit the “slotstatsclear” command

After the agreed (mostly around one hour) run-time capture a new supportsave and upload this to the vendor’s service request.

SupportSave Data Collection (CLI Method)

When the problem is more sophisticated a supportsave from the switch is required. The supportsave command is available as of Fabric OS version 4.4 however, Fabric OS versions (> 6.2.x) provide a significant better collection of logs which represent the status overview of the switch and fabric. If you have a director class switch with two CP’s and/or core plus function blades it will also collect information from all the blades.

The supportsave will upload between 25 and 80 files depending on platform, Fabric OS level and enabled features to an FTP or SCP server. These will not be tarred or zipped into one file so it is important you create such an archive with a meaningful name. (ie. switchname-domainid-fabricid.zip)

Example

Fabosv4.4switch:admin> supportsave -u anonymous -p password -h xxx.xxx.xxx.xxx -d /directory -l ftp

This command collects RASLOG, TRACE, supportShow, core file, FFDC data and then transfer them to a FTP/SCP server or a USB device. You could also simply type the “supportsave” command without any parameters and you will be asked for the extra information before the command is actually executed. The operation will usually take several minutes to complete.
NOTE: supportSave will transfer existing trace dump file first, then automatically generate and transfer latest one. There will be two trace dump files transferred after this command.

OK to proceed? (yes, y, no, n): [no] y
Saving support information for switch:BR4100_IP127, module:RAS…
Saving support information for switch:BR4100_IP127, module:CTRACE_OLD…
Saving support information for switch:BR4100_IP127, module:CTRACE_NEW…
etc……

To upload the files you can specify the FTP parameters inline (as modeled above) or through the supportftp command (see Fabric OS V5.1 command Reference guide) .

  1. Host IP: XXX.XXX.X.X (example 192.168.1.1)
  2. User Name: admin
  3. Password:
  4. Remote Directory: tmp (example: tmp)
  5. Saving support information

SupportShow Data Collection

This is a non disruptive procedure and can be performed by the CE or the customer.

You can use your favorite terminal emulation utility. Refer to the respective documentation how to turn on capturing output to a file.

Telnet or SSH

  1. Telnet or SSH into Brocade switch
  2. Enter username and password
  3. Start logging to file on the Telnet session.
    NOTE: For Windows standard telnet, this is under the terminal pulldown menu.
  4. Enter command: supportShow
  5. Upload the telnet log to TUF.

What is the Principal switch in a Brocade SAN

Principal switches maintain unique domain ID across the fabric. Principal switch ensures that each switch in a SAN have different domain ID. Any ISL of a switch that takes to the Principal switch is a upstream. Any ISL of a switch that goes away from principle switch is a downstream. All non principal switches are called subordinate switch. Zoning updated in a principal switch or a non principal switch will update zoning across the fabric. “date” command will be a read-only if a switch is configured with a Time server – NTP. Principal switch will update the time in all the non principal switches. tsclockserver is the command used to associate a switch to a NTP time server.

To manually set a subordinate switch to a principal switch use “fabricprincipal” command.

To elect a new principal switch:

>fabricprincipal -1         # This command will see the appropriate principal switch and make it as a new principal switch. Also, this will elect new upstream and downstream ISLs

To force a switch to be a principal switch:

> fabricprincipal -f         # This command will force the switch to be the principal switch of the fabric. This will also elect new upstream and downstream ISLs

To see the current settings:

> fabricprincipal -q      # This command will query the current settings and displays

How to check the Principle switch:

  • Fabicshow shows the Princple switchSwitch ID   Worldwide Name           Enet IP Addr    FC IP Addr      Name
  • ————————————————————————-
  • 121: fffc79 10:00:00:05:1e:36:0b:42 10.2.59.52      0.0.0.0        >”IBM_2109_M48_21″
  • 130: fffc82 10:00:00:05:33:cd:a4:c2 10.2.59.8       0.0.0.0         “DS_6505B”
  • The Fabric has 2 switches
  1. Switchshow shows the principle

This Fabric has 2 switches

IBM_2109_M48_21:admin> switchshow

switchName:     IBM_2109_M48_21
switchType:     42.2
switchState:    Online
switchMode:     Native
switchRole:     Principal
switchDomain:   121
switchId:       fffc79
switchWwn:      10:00:00:05:1e:36:0b:42
zoning:         ON (Cfg_080123)
switchBeacon:   ON
blade1 Beacon:  OFF
blade2 Beacon:  OFF
blade3 Beacon:  OFF
blade4 Beacon:  OFF
blade7 Beacon:  OFF

DS_6505B:admin> switchshow
switchName:     DS_6505B
switchType:     118.1
switchState:    Online
switchMode:     Native
switchRole:     Subordinate
switchDomain:   130
switchId:       fffc82
switchWwn:      10:00:00:05:33:cd:a4:c2
zoning:         ON (Cfg_080123)
switchBeacon:   OFF
FC Router:      OFF
FC Router BB Fabric ID: 1
Address Mode:   0

How to Replace the Switch:

  • Load the Licenses to the Switch as of the other switches
  • Assign the Network IP address to the switch and do not connect to the SAN Fabric
  • Save the configuration by issuing the command configupload
  • Upgrade the code to the same Firmware version
  • Update the credentials to the standard credential as per your org standards
  • Disable your switch with ‘switchdisable’
  • Change the domain id of the switch next available
  • Change the principleswitch role to subordinate  by issuing the command principle –f 0
  • Connect the Switch to the SAN  and this will download the config from the core switch or principle switch

Free Dell EMC trainings

For those that want some extra training on Unity or the VMAX All Flash for example, there’s free training available from Dell EMC Education at this moment:

This list is a summary only. For a complete list, take a look at DECN (Dell EMC Community Network) for the complete list: https://community.emc.com/docs/DOC-34286

How to create a snapview snapshot on an existing LUN

I apologize in advance for this (6 years or so too late) post, since it’s for creating a snapview snapshot on a LUN on a VNX. It’s simply meant as a reminder for the command line syntax:

Examples for creating snapview snapshots (it only defines it, no COFW is happening at this point):
naviseccli -h 172.16.20.96 snapview -createsnapshot 17 -snapshotname VMFS-001-SNAP
naviseccli -h 172.16.20.96 snapview -createsnapshot 18 -snapshotname VMFS-003-SNAP
naviseccli -h 172.16.20.166 snapview -createsnapshot 27 -snapshotname VMFS-002-SNAP
naviseccli -h 172.16.20.116 snapview -createsnapshot 5 -snapshotname VMFS-004-SNAP

To start an actual point in time session (and the start of COFWs):
naviseccli -h [ip address] snapview -startsession [session name] -snapshotname VMFS-001-SNAP

To stop a session:
cnaviseccli -h [ip address] snapview -stopsession [session name]

To activate a snapview session (make the data visible):
naviseccli -h [ip address] snapview -activatesnapshot [session name] -snapshotname VMFS-001-SNAP

To deactivate a snapview session (stop presenting the data to the hosts):
naviseccli -h [ip address] snapview -deactivatesnapshot [session name] -snapshotname VMFS-001-SNAP

Dell EMC Elect 2017: the list

Dell EMC Elect

It’s been a while since my last post and there’s no good reason why I didn’t post this earlier, except that life’s been very very busy for me lately. But then again, so it is for all of us, right?

Anyway, last week, on March 29 to be precise, the judging was over and we presented the new list of Elect members. After the merger of Dell Rockstar and EMC Elect, we had to come up with a new program that would combine both groups and form a representative list of professionals who share their passion for the Dell EMC enterprise environment. Being a part of the founders, again, me and the other founders discussed the name of the new group and how we would judge the nominees. I wrote a post on that a little while ago actually. This new advocacy program will be know as the

Dell EMC Elect

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The king is dead, long live the king: Dell EMC Elect is born!

Dell EMC Elect

Now that Dell and EMC have merged, both advocacy programs have ended as well. No more Dell Rockstar and EMC Elect, but a brand “new” program has emerged!!

As an EMC Elect founder I loved being part of the EMC Elect from the very beginning in Q4 of 2012, but times are changing and a new era has started: I guess that’s how life changes as well and this time it was a good change! The advocacy program we’ve all been proud of, whether that was the Dell Rockstar or the EMC Elect, was booming! I can only speak of the Elect and being able to talk to people about it, as a real advocate should be doing, was great.

Michael Dell finally meets the Elect

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