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hw

flower

Create new LUN on Unity

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Create new LUN on Unity by Dell-EMC

 

Login to GUI

 

Go to navigation menu on left Storage > Block

 

 

Click the “+” sign to create

-name it with hostname, date and purpose for easy identification

-provide description to identify

-put tiering policy: “Start High Then Auto-Tier” default is recommended

-uncheck the thin provisioning option

-size as requested

-thin option (checked means increase in disk usage as data is written, uncheck means immediate increase) 

-no limit on I/O

 

Provide access to hosts 

-set up the hosts connection by clicking “+” sign

 

Setup snapshot schedule as needed

 

Setup replication as needed

 

pure

Create new LUN on Pure Storage

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Create new LUN on Pure Storage

Login to the GUI

 

Create a new voume by going to Storage > Volumes

 

Click + to create new LUN

 

-name it with hostname, date and purpose for easy of identification

-give the size on “Provisioned Size”

-click “Create”

 

Connect the new LUN to host on Storage > Hosts

-search the hosts and click into it

-if you are not sure, you can look into the hostname on Health > Connections

-if you are not sure, you can look into the host and double check WWN of host’s FC card ports

-click into the 3 dots on to right upper corner

-click “Connect”

-search the LUN by LUN name given and check

-click “Connect”

-click the new LUN created and share the Serial number for sysadmin to identify

 
 
 
data

Tips & Tricks for Data Domain

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Tips & Tricks for Data Domain by Dell-EMC

 

You can utilize by GUI on web, or ssh into the data domain

 

Here’s example of data domain commands

To shows current alerts

alerts show current

 

To unfail the new replaced disk after replacing faulty disk (does not come back online automatically)

disk unfail disk_position (ex: 1.1)

 

Show the state for disks

disk show state

 

Shows the properties of disk hardware

disk show hardware

 

Clean up filesystem

filesys clean start

 

Check filesystem status

filesys status

 

tricks

Tips & Tricks on VNX

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Tips & Tricks on VNX storage by Dell-EMC

 

default ID and PW

ID: nasadmin

PW: nasadmin

 

ID: root

PW: nasadmin

 

To check domain list

/nas/sbin/navicli -h spa domain -list

 

To check failover/failback status

/nasmcd/sbin/getreason

 

To utilize navisseccli

/nas/sbin/naviseccli -h SPA -user sysadmin -password <password> -scope 0 domain -messner -add -system <CS_IP>

 

To generate CA certificate for GUI

/nas/sbin/nas_ca_certificate -generate

 

To extend NFS on VNX

Storage > Storage > Storage Configuration > File Systems

click on appropriate file system

click “Extend” and provide the extend size

click “OK” or “Apply”

control

Cleaning the Control Station on VNX

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Cleaning the Control Station on VNX

 

ssh into control station (IP noted on storage manual)

 

Check to see if there’s any stale tasks

cd /nas/tasks (only primary control station has this filesystem)

ls | wc -l

 

*should be normal to see single to double digits… 

 

Remove any stale tasks

rm -rf *_status

rm -rf *_pipe

 

check back the stale task status by another command of

ls | wc -l

 

to see the failover/failback status

/nasmcd/sbin/getreason

10 – slot_0 primary control station (slot_0 should be always primary, if else, login to slot_1 primary and reboot)

 0 – slot_1 reset

 5 – slot_2 contacted

 5 – slot_3 contacted

 

bring back to the primary node (as recommended)

login to slot_1 primary by command

su – nasadmin

reboot

 

Do not reboot from both primary and secondary control station at once! it will cause serious damage!

 

*wait for full boot up on each side and check status by getreason commands

 

datacenter

Write cache on Unity Storage

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How to disable or enable write cache on Unity

 

SSH into Primary SP

-use OS account “service” with password the same as admin account

-use commands like below to enable or disable

 

*you only need to run it once and it’ll be applied to both nodes!

 

svc_cache –get

shows status

3 means enabled

7 means transitioning

8 means disabled

 

svc_cache –force-enableCacheOperations

force enable cache

 

Here’s the procedure for maintenance

1) disable write cache option (only need to do once on SP A or B)

2) put Unity SP A or B on service mode

3) on-site engineer will replace parts

4) put Unity SP A or B out of service mode

5) enable write cache option

 

switch

Create zones on Brocade SAN Switch

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80-1007288-01 Brocade SAN Switch 6510 16Gbit 24 Active Ports Na 6510 24 8Gmc R (Refurbished)

How to work on Brocade SAN Switch

To see what’s connected on the switch

switchshow

You can do and press forward slash (/) to search the specific WWN of your newly connected server

switchshow | more

To see what alias are set up on the switch

alishow

To see what zones are set up on the switch

zoneshow

Now we will create alias between WWN to Hostname

alicreate “hostName”,”WWN”

Once we’ve added the alias, we can set up the zone between new server alias to storage

zonecreate “zoneName”,”hostName;storageName”

zonecreate “hostName_fabricConfigName_storageName”,”hostName;storageName“

Once the zone is configured, we need to add and enable the new configuration as below

cfgadd “configName”,”zoneName”

cfgsave

cfgenable “configName“

tape

Tips & Tricks on IBM TS4300 Tape Library

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TS2290 Tape Drive

Tips & Tricks on how to use IBM TS4300 Tape Library

 

Here’s the specification and details on IBM

 

Cleaning the tapes inside the tape library

– login to TS4300 GUI

– input the credentials

– click on tab “Drives” on left menu

– click on dropdown menu “Actions”

– select “Clean Drive”

– select the cleaning tape on left, and destination drive on right

– click “Move” and allow it to clean the drive

 

cluster

Setup Cluster on Servers using IPMI

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Here’s the guide on how to setup cluster environment for multiple servers!

we are using PowerEdge & RedHat as an example:

 

1) Open firewall between server OS and servers’ iDRAC TCP/UDP over port 623,664 (both ways)

 

2) Enable IPMI Over LAN settings on iDRAC Settings under Network

3) Make sure to create fence user, enabled, and privilege of administrator for iDRAC & LAN

 

4) Check to make sure the password is the same on the cluster.conf file on the server OS

 

5) Check connectivity by this command

ipmitool -U fenceUser -I lanplus -P ‘fencePassword’ -H 192.0.1.2 sensor -L Administrator

 
dell

Get system info on PowerEdge

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racadm command-line utilty is a utility tool developed by Dell-EMC. It provides a scriptable interface that allows you to locally configure or remotely configure your Remote Access Controller (RAC). The utility runs on the management station and the managed system.

 

you would need to install the racadm utility on the OS appropriate to your type.

 

here’s useful commands to manage PowerEdge!

 

Check the system information

racadm getsysinfo

 

Check for system error messages

racadm lclog view

 

Here’s the manual provided by Dell-EMC

 

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