Question about unmap dev form FA

Question

Hi

I have a question about unmap dev from FA.

Let me tell you that i have one dev mapped to 4 FA's please see the info below

Device Identifier Type Dir:P
------ ---------------- ----- ----------------
08ED 2100001b32074693 FIBRE FA-8A:1
210100e08bbb2875 FIBRE FA-9A:1

this info is for my produccion server and it is running now.

but i have the same device mapped to other FA pair, but this server wont work any more, i mean I'm going to turn off the server y I wont need this dev in these FA pair any more.

Device Identifier Type Dir:P
------ ---------------- ----- ----------------
08ED 10000000c96da746 FIBRE FA-8C:1
10000000c96bb3de FIBRE FA-9C:1

I know that I can unmapped this dev from FA 8C:1 and 9C:1, but how can i do that, because to unmap a dev I need to configure the dev to not ready, but the dev is running also in the FA 9C:1 and 9A:1

does any one help to tell me how can i do that, I mean, tell me the steps ?

Regards

dynamox · Answer

instead of making device not_ready you will need to make device write disable on those FAs you are unmapping them from:

symdev -sid 123 write_disable 0BAD -SA 8C -p 1

so this will write disable device 0BAD only on FA 8C:1 ..it will not impact other FAs. Once you got them write_disabled on FAs you are no longer using ..go ahead and unmap.

zonie1 · Answer

1) Remove masking for unused HBA'ssymmaskdb -sid 766 -wwn 10000000c96bb3de remove dev 57D -dir 8c -p 1symmaskdb -sid 766 -wwn 10000000c96d5def remove dev 57D -dir 9c -p 1symmask refresh2) Write Disable device on directorssymdev -sid 766 write_disable 57D -sa 8c -p 1symdev -sid 766 write_disable 57D -sa 9c -p 13) New map file containing unmap commands (cmdfile.txt)unmap dev D57 from dir 8c:1;unmap dev D57 from dir 9c:1;4) symconfigure -sid 766 -f cmdfile.txt preview -> prepare -> commitEveryone agree?

guanabacoa · Answer

hiis my script ok?Regards

guanabacoa · Answer

Hi

Talking about unmapped device from 4 FA directors,

I'am going to apply this change in my production environment:

could you check my scripts:

The dev is 057D
The production FA are 8B0 and 9B0

057D 10000000c96d5dc4 FIBRE FA-8B:0
10000000c973f198 FIBRE FA-9B:0
10000000c96bb3de FIBRE FA-8C:1
10000000c96d5def FIBRE FA-9C:1

I want to unmap the dev from 8c1 and 9c1, but I don't want to affect my production FAs

Please see below my script

symdg create unmapkondordb
symld -g unmapkondordb addall dev 057D
symld -g unmaptcbsdev write_disable -sa 8C -p 1
symld -g unmaptcbsdev write_disable -sa 9C -p 1
unmap dev 057D from dir ALL:ALL;
symconfigure discover

/usr/symcli/bin/symconfigure -sid 0766 -f /home/ixeadmin/kondorunmap2.txt preview
/usr/symcli/bin/symconfigure -sid 0766 -f /home/ixeadmin/kondorunmap2.txt prepare
/usr/symcli/bin/symconfigure -sid 0766 -f /home/ixeadmin/kondorunmap2.txt commit

Regards

zonie1 · Answer

Don't forget to unmask the device from the wwn's first

guanabacoa · Answer

Check my scripts

dynamox · Answer

actually no dissolving as it's still in use ...brain clot

dynamox · Answer

looks good. If 57D is a meta ..might as well dissolve it if you don't plan on re-using this device anytime soon. you may run powermt check and delete dead paths/devices.

guanabacoa · Answer

HiLast question:If i use a group like this, is my script ok?symdg create unmapkondordbsymld -g unmapkondordb addall dev 057Dsymld -g unmaptcbsdev write_disable -sa 8C -p 1symld -g unmaptcbsdev write_disable -sa 9C -p 1 regards

dynamox · Answer

if you only have one device i would not bother putting it in a group ..just use symdev to write_disable it.symdev -sid 123 write_disable 057D -sa 8c -p 1symdev -sid 123 write_disable 057D -sa 9c -p 1

Symmetrix

Question about unmap dev form FA

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