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1385
(635) Logical Sector Data Error on AX4-5
Our clariion AX4-5 logged multiple "Logical Sector Data Error" on one of the SP. I am just looking out to hear from anybody who has seen this errror. Is it serious to be worried? or what corrective action can be taken to stop this error.
This is how my Event log looks like;
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 Enclosure 3 Disk 10 (957) Uncorrectable Sector [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 10 (840) Data Sector Invalidated [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (957) Uncorrectable Sector [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (840) Data Sector Invalidated [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (953) Uncorrectable Parity Sector [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (956) Parity Invalidated [0x00] 6d3914c0 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 10 (957) Uncorrectable Sector [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 10 (840) Data Sector Invalidated [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (957) Uncorrectable Sector [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (840) Data Sector Invalidated [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (953) Uncorrectable Parity Sector [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (956) Parity Invalidated [0x00] 6d3914ff 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (953) Uncorrectable Parity Sector [0x00] 6d48af40 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (956) Parity Invalidated [0x00] 6d48af40 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 1 (957) Uncorrectable Sector [0x00] 6d48af40 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 1 (840) Data Sector Invalidated [0x00] 6d48af40 13001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (953) Uncorrectable Parity Sector [0x00] 6d48ae40 14001000
05/20/2015 00:11:54 Enclosure 3 Disk 9 (956) Parity Invalidated [0x00] 6d48ae40 14001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (957) Uncorrectable Sector [0x00] 6d48ae40 14001000
05/20/2015 00:11:54 Enclosure 3 Disk 6 (840) Data Sector Invalidated [0x00] 6d48ae40 14001000
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
05/20/2015 00:11:54 SP B (635) Logical Sector Data Error [0x00] 0 0
AnkitMehta
1.4K Posts
0
May 20th, 2015 03:00
You have bad blocks on multiple disk drives.
Yes, it is serious as it causes data corruption and integrity issues.
Best Bet for you would be:
1. Restore from Valid Backup and recreate the RAID Group and LUNs after replacing disks with Uncorrectable.
If you do not have a valid back up then you can try:
1. Run Data Integratity Checks from your hosts.
2. Take a backup (You might be backing up few corrupted data, but that's something you will need to live with)
3. Unmap LUNs, Delete LUNs and RAID Group.
4. Replace disks with Error: Enclosure 3 Disk x (957) Uncorrectable Sector
5. Re-create and Restore.
AnkitMehta
1.4K Posts
0
May 20th, 2015 04:00
Here's the official answer with technical terms: https://support.emc.com/kb/23000
(It's nothing but What I explained in simple language)
PBalu
18 Posts
0
May 20th, 2015 04:00
Thanks for your response.
But the Uncorrectable sector errors are logged against 4 drives and do you think that all 4 drives should be replaced?
Is there an alternate workaround for this issue? Because here we are talking about quite a lot of luns and many production servers accessing it.
kelleg
4.5K Posts
0
May 22nd, 2015 14:00
Also, make sure you have the latest Flare release for the AX4 - release patch 711 is the last release for AX4.
glen