unable to lable and initialize the EMC symmetrix disks
Hi Friends,
please help how to resolve this issue. i am not able to lable the disk , not able to display partition table also and even i am not able to initialize or uninitilize the disk. these are newly added disks and operating system is solaris 10 and veritas version is VERSION: 5.0,REV=05.11.2006.17.55. so please help me here...........
sunhost0042 # vxdisk -o alldgs list|egrep -i "c5t6d62s2|c5t6d63s2|c5t6d64s2|c5t6d65s2|c5t6d66s2|c5t6d67s2|c5t6d68s2|c5t6d85s2|c5t6d87s2|c6t6d60s2|c6t6d61s2|c6t6d68s2|c6t6d69s2|c6t6d70s2|c6t6d88s2"
c5t6d62s2 auto - - error
c5t6d63s2 auto - - error
c5t6d64s2 auto - - error
c5t6d65s2 auto - - error
c5t6d66s2 auto - - error
c5t6d67s2 auto - - error
c5t6d68s2 auto - - error
c5t6d85s2 auto - - error
c5t6d87s2 auto - - error
c6t6d60s2 auto - - error
c6t6d61s2 auto - - error
c6t6d68s2 auto - - error
c6t6d69s2 auto - - error
c6t6d70s2 auto - - error
c6t6d88s2 auto - - error
sunhost0042 # prtvtoc /dev/rdsk/c6t6d62s2
prtvtoc: /dev/rdsk/c5t6d62s2: Unable to read Disk geometry errno = 0x5
sunhost0042 # format c6t6d62s2
FORMAT MENU:
disk - select a disk
type - select (define) a disk type
partition - select (define) a partition table
current - describe the current disk
format - format and analyze the disk
repair - repair a defective sector
label - write label to the disk
analyze - surface analysis
defect - defect list management
backup - search for backup labels
verify - read and display labels
save - save new disk/partition definitions
inquiry - show vendor, product and revision
volname - set 8-character volume name
!<cmd> - execute <cmd>, then return
quit
format> l
Current Disk Type is not set.
format> type
sunhost0042 # /etc/vx/bin/vxdiskunsetup -C c5t6d62
prtvtoc: /dev/rdsk/c5t6d62s2: Unable to read Disk geometry errno = 0x5
sunhost0042 # /etc/vx/bin/vxdisksetup -i c5t6d62
prtvtoc: /dev/vx/rdmp/c5t6d62s2: Unable to read Disk geometry errno = 0x5
sunhost0042 # vxdisk list c5t6d62s2
Device: c5t6d62s2
devicetag: c5t6d62
type: auto
flags: online error private autoconfig
pubpaths: block=/dev/vx/dmp/c5t6d62s2 char=/dev/vx/rdmp/c5t6d62s2
guid: -
udid: EMC%5FSYMMETRIX%5F704943%5F4387F000
site: -
Multipathing information:
numpaths: 2
c5t6d62s2 state=enabled
c6t6d62s2 state=enabled
Comments
Have you verified Array
Have you verified Array Settings as per page 10 of Hardware TechNote?
This TechNote describes a similar problem with EMC Clariion:
http://seer.entsupport.symantec.com/docs/305501.htm
Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows.
Handy NBU links
issue with symmetrix devices not with clarrion devices....
Hi Marianne,
Thanks for the reply, as per the technote one of the path is missing. but here in my case i am able to see both the paths. i have problem with my symmetrix devices and not for the clarrion devices. i asked EMC to look into the issue and they r ectified the issue with in minnutes. they said it is issue from Array side. If one have idea what they changed in storage side please let me know.
Hi Kumar, I was trying to
Hi Kumar,
I was trying to point out that Array settings can cause these kind of errors. The TechNote describes a situation where both paths can be seen, but 'format' command output displays <drive type unknown> for one of the paths to the LUN,
Page 10 of the Hardware TechNote contains settings for Symmetrix. Please ask the EMC support team to check and confirm.
Supporting Storage Foundation and VCS on Unix and Windows as well as NetBackup on Unix and Windows.
Handy NBU links
SAN LUNs
Hi Kumar,
One typical scenario is, When the storage admin presents the LUN to a host, all those LUNs need to be made r/w enabled. Result of not doing so will fail any disk initialization commands or even prtvtoc/format commands.
Other interesting fact i observed with SVC is, if the LUNs are presented uncooked or half cooked ( SVC puts those LUNs into read only mode while cooking) also shows the same behavior as above.
Other possible scenario could be, same LUN accidentally zoned to more than one systems.
VXDCTL ENABLE
Kumar, do a "vxdctl enable" twice, Then try to label the Disks.
Still if you have any issues, please post the error here.
I have faced the similar issue before and I resolved it.
Hi Kumar, Looking at the
Hi Kumar,
Looking at the partition table of the device, looks like the device has not been labelled yet.
Please label them through 'format'' first.
Once they have been labelled, please run the 'prtvtoc' again and make sure you can see the partition table.
Only then, you can go and initialise the devices within volume manager using ' vxdisksetup' command.
Hope this helps.
I had a similar problem.
I had a similar problem. Tresspass the Clariion LUN(s) to the other SP. That should fix the issue with prtvtoc. Then rescan the LUN(s) (vxdctl enable) and you should be able to initialize them.
Oops. Sorry. Had Clariion
Oops. Sorry. Had Clariion on the brain. Check your SAN zones, then your Symmetrix masking. Make sure each LUN is masked as the same Host LUN ID on all of the host HBA's.
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