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Help with a cx700 that is stuck transitioning/rebuilding
Hi Folks,
Hoping someone here can lend a hand. I am stuck and have reached my wits end, and was really hoping someone here might be able to help
1. I have a cx700
2. Last friday a disk failed in my 500gb lun. (raid 5 group w/hotspare)
3. fortunately the hotspare kicked in and started rebuilding the raid group.
4. While the transition has happening another disk failed.
5. I changed out both failed disks on sunday morning, but I knew the damage was done. Raid 5, so the data was lost, but its ok because i was going to kill it off soon anyway.
6. I thought the transition would stop, but it never did. It got stuck at 2% (im guessing this is where it was when the 2nd disk died).
Now my cx700 is stuck in transitioning state.
1. I tried pulling all of the host spares. this faulted the hostspare raid groups, and the lun that was rebuilding. I then tried to destroy the lun, but navisphere would not let me. it kept giving me errors, the only thing i was able to do was remove it from the storage group which i did hopeing that would release whatever was using the lun. no luck. now the lun is a private lun, and i still cant unbind it or destroy the raid group. Please help??
thank you,
Jason
I ran the getlun stack command and got nothing back.
superman# ./navicli -h 192.168.10.10 getlun -messner 1 -stack
Listed Driver:
superman#
the failed disk says
superman# ./navicli -h 192.168.10.10 getdisk 0_0_11
Bus 0 Enclosure 0 Disk 11
Vendor Id: SEAGATE
Product Id: ST373405 CLAR72
Product Revision: 4A3C
Lun: 2
Type: 2: RAID5
State: Enabled
Hot Spare: 2: NO
Prct Rebuilt: 2: 2
Prct Bound: 2: 100
Serial Number: 3EK10MQF
Sectors: 126652416 (61842)
Capacity: 68238
Private: 2: 13099082
Bind Signature: 0x2897, 0, 11
Hard Read Errors: 0
Hard Write Errors: 0
Soft Read Errors: 0
Soft Write Errors: 0
Read Retries: N/A
Write Retries: N/A
Remapped Sectors: N/A
Number of Reads: 924
Number of Writes: 369
Number of Luns: 1
Raid Group ID: 0
Clariion Part Number: DG118032243
Request Service Time: N/A
Read Requests: 924
Write Requests: 369
Kbytes Read: 41717
Kbytes Written: 6438
Stripe Boundary Crossing: 0
superman#
hot spare says this using the getdisks comand:
Bus 0 Enclosure 1 Disk 14
Vendor Id: SEAGATE
Product Id: ST314680 CLAR146
Product Revision: 7A0A
Lun: 223
Type: 223: Hot Spare
State: Rebuilding
Hot Spare: 223: YES
Hot Spare Replacing: 0_0_7
Prct Rebuilt: 223: 100
Prct Bound: 223: 100
Serial Number: 3HYY406N
Sectors: 280278656 (136854)
Capacity: 68238
Private: 223: 69704
Bind Signature: 0x6ebe, 1, 14
Hard Read Errors: 0
Hard Write Errors: 0
Soft Read Errors: 0
Soft Write Errors: 0
Read Retries: N/A
Write Retries: N/A
Remapped Sectors: N/A
Number of Reads: 999
Number of Writes: 373
Number of Luns: 1
Raid Group ID: 223
Clariion Part Number: DG118032462
Request Service Time: N/A
Read Requests: 999
/
Number of Reads: 5
Number of Writes: 0
Number of Luns: 5
Raid Group ID: 8
Clariion Part Number: DG118032260
Request Service Time: N/A
Read Requests: 5
Write Requests: 0
Kbytes Read: 200
Kbytes Written: 0
Stripe Boundary Crossing: 0
When one disk in a Raid 5 fails the hot spare should kick in and start rebuilding to the hot spare, during this time if a second disk fails, the rebuild stops. Sometimes you can get the rebuild started again by re-seating the second disk that failed. If the second disk does not come on-line, then you're facing a double faulted raid group. EMC recommends that if you remove the disks, that you mark each disk as to its location if it needs to be re-inserted.
To recover or destroy the raid group would require EMC service to access the array directly - you'll need to open a service request with EMC.
https://support.emc.com/kb/33430 Unable to destroy a RAID group
glen
B4FQqUoIrW12094
60 Posts
1175
0
Posted August 11th, 2015 22:00
To resolve the issue, these steps were followed: As per Article Number:000028251
Also refer below primus
https://emc--c.na5.visual.force.com/apex/KB_BreakFix_1?id=kA17000000017hX