HP SMART ARRAY

hp ML370 g6,

DISK FLASHING AMBER, DIAGNOSTIC SAYS PREDICTIVE FAILURE.  Everything I read says no problem with hot swap if disk has failed (continuous red light), but I do not see anything regarding hot swapping a disk showing eminent failure. Should I wait till disk fails, or will proceed with swap?
holcom86Asked:
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Wayne88Commented:
We have both HP and DELL servers.  What RAID configuration is it?  If 5 or higher just replace it while the machine is on, it will rebuild automatically.  You don't have to wait until it fail.
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holcom86Author Commented:
raid 5, thanks
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Wayne88Commented:
hotswapping right away is fine for HP raid 5.
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Seth SimmonsSr. Systems AdministratorCommented:
doesn't matter the raid level; it will still rebuild
i had a G6 recently that had a predictive failure in a raid 1; swapped the drive and it rebuilt
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rindiCommented:
Don't wait until it fails. Replace the disk immediately..
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andyalderCommented:
Check the ADU report for "read errors hard" on the other disks and if none of them have this at anything but 0 then go ahead and swap it.

For example if the stats for one of the disks other than the one you're replacing show like this then it may be backup/restore time. It's only 500 bad reads since it was made but if one comes up during rebuild you'll have a punctured stripe.

Smart Array 6400 in slot 1 : Physical Drive 2:4 : Monitor and Performance Statistics (Since Factory)

   Serial Number                        obfuscated
   Firmware Revision                    HPB8
   Product Revision                     COMPAQ  BD14685A26      
   Reference Time                       0x00055f82
   Sectors Read                         0x0000000afc3ac56d
   Read Errors Hard                     0x00000288            <------------------this is not zero
   Read Errors Retry Recovered          0x00000000
   Read Errors ECC Corrected            0x000000000000001d
   Sectors Written                      0x000000004478eae2
   Write Errors Hard                    0x00000000
   Write Errors Retry Recovered         0x00000000
   Seek Count                           0x0000000000000ce0
   Seek Errors                          0x0000000000000000
   Spin Cycles                          0x00000000
   Spin Up Time                         0x0000
   Performance Test 1                   0xffff
   Performance Test 2                   0x0005
   Performance Test 3                   0x0043
   Performance Test 4                   0x0089
   Reallocation Sectors                 0xffffffff
   Reallocated Sectors                  0x0000174d
   DRQ Time Outs                        0xffff
   Other Time Outs                      0x0015
   Drive Rebuild Count                  0 (0x0000)
   Spin Retries                         65535 (0xffff)
   Recovers Failed Read                 0x0002
   Recovers Failed Write                0x0000
   Format Errors                        0x0000
   Self Test Failures                   0xffff
   Not Ready Failures                   0x00000000
   Remap Abort Failures                 0xffffffff
   IRQ Deglitch Count                   4294967295 (0xffffffff)
   Bus Faults                           0x00000000
   Hot Plug Count                       0 (0x00000000)
   Track Rewrite Errors                 0xffff
   Write Errors After Remap             0x0000
   Background Firmware Revision         0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
   Media Failures                       0x0000
   Hardware Errors                      0x0000
   Aborted Command Failures             0x0000
   Spin Up Failures                     0x0000
   Bad Target Count                     0 (0x0000)
   Predictive Failure Errors            0x00000000     <----------------its not predictive failure but it would fail diagnostics due to bad blocks.
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