Hello EMC Community,

I have a doubt that maybe some of you have already figured out. I have a backup software that requires that all the devices presented in Linux to have different UUID´s. Since this server is using PowerPath, I have four devices, all with the same UUID (sda, sdb, sdc and sdd). Is it safe to change these UUID´s? Will Powerpath be able to create emcpowera device if I change these UUID´s?

Here is some information:

----- PowerPath

powermt display dev=all

Pseudo name=emcpowera

CLARiiON ID=CKM00102600265 [SG_KK]

Logical device ID=600601607181290074EAD40CF9F7E011

state=alive; policy=CLAROpt; priority=0; queued-IOs=0;

Owner: default=SP B, current=SP B       Array failover mode: 4

==============================================================================

--------------- Host ---------------   - Stor -   -- I/O Path --  -- Stats ---

###  HW Path               I/O Paths    Interf.   Mode    State   Q-IOs Errors

==============================================================================

   0 qla2xxx                  sda       SP A0     active  alive       0      0

   0 qla2xxx                  sdb       SP B0     active  alive       0      0

   1 qla2xxx                  sdc       SP B0     active  alive       0      0

   1 qla2xxx                  sdd       SP A0     active  alive       0      0

----- BLKID

/dev/sda1: LABEL="/boot" UUID="9b601568-c4db-401f-a613-1aaebbeaa14a" TYPE="ext3"

/dev/sda2: LABEL="SWAP-sdc2" TYPE="swap"

/dev/sda3: LABEL="/" UUID="05da992c-1b20-486c-b58c-489a48ddb647" TYPE="ext3"

/dev/sdb1: LABEL="/boot" UUID="9b601568-c4db-401f-a613-1aaebbeaa14a" TYPE="ext3"

/dev/sdb2: LABEL="SWAP-sdc2" TYPE="swap"

/dev/sdb3: LABEL="/" UUID="05da992c-1b20-486c-b58c-489a48ddb647" TYPE="ext3"

/dev/sdc1: LABEL="/boot" UUID="9b601568-c4db-401f-a613-1aaebbeaa14a" TYPE="ext3"

/dev/sdc2: LABEL="SWAP-sdc2" TYPE="swap"

/dev/sdc3: LABEL="/" UUID="05da992c-1b20-486c-b58c-489a48ddb647" TYPE="ext3"

/dev/sdd1: LABEL="/boot" UUID="9b601568-c4db-401f-a613-1aaebbeaa14a" TYPE="ext3"

/dev/sdd2: LABEL="SWAP-sdc2" TYPE="swap"

/dev/sdd3: LABEL="/" UUID="05da992c-1b20-486c-b58c-489a48ddb647" TYPE="ext3"

/dev/emcpowera1: LABEL="/boot" UUID="9b601568-c4db-401f-a613-1aaebbeaa14a" TYPE="ext3"

/dev/emcpowera2: LABEL="SWAP-sdc2" TYPE="swap"

/dev/emcpowera3: LABEL="/" UUID="05da992c-1b20-486c-b58c-489a48ddb647" TYPE="ext3"

Thank You!