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SVM - metastat - Last Erred

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Operating Systems Solaris SVM - metastat - Last Erred
# 1  
Old 12-11-2008
SVM - metastat - Last Erred
My company is running a solaris 2.7 machine. The machine is getting slow recently. I have no expert in solaris. Please help.

I checked the log in /var/adm/message:
Quote:
Dec 11 09:37:56 web i/o to invalid geometry
Dec 11 09:37:56 web unix: WARNING: md: d16: write error on /dev/dsk/c0t0d0s6
Dec 11 09:37:58 web unix: WARNING: /pci@1f,4000/scsi@3/sd@0,0 (sd0):
Dec 11 09:37:58 web disk not responding to selection
I also checked with the command iostat -nE. It returns:
Quote:
c0t0d0 Soft Errors: 0 Hard Errors: 3 Transport Errors: 9
Vendor: SEAGATE Product: ST318203LSUN18G Revision: 034A Serial No: LRD9164600001037
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 3 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t1d0 Soft Errors: 0 Hard Errors: 4 Transport Errors: 2
Vendor: FUJITSU Product: MAG3182L SUN18G Revision: 1111 Serial No: 02542399
Size: 18.11GB <18110967808 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 4 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
c0t6d0 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
Vendor: TOSHIBA Product: XM6201TASUN32XCD Revision: 1103 Serial No: 12/12/97
Size: 18446744073.71GB <-1 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
Metastat returns the followings:
Quote:
d0: Mirror
Submirror 0: d10
State: Needs maintenance
Submirror 1: d20
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 4198392 blocks
d10: Submirror of d0
State: Needs maintenance
Invoke: metareplace d0 c0t0d0s0 <new device>
Size: 4198392 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s0 0 No Maintenance
d20: Submirror of d0
State: Okay
Size: 4198392 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t1d0s0 0 No Okay

d1: Mirror
Submirror 0: d11
State: Needs maintenance
Submirror 1: d21
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 2101552 blocks
d11: Submirror of d1
State: Needs maintenance
Invoke: metareplace d1 c0t0d0s1 <new device>
Size: 2101552 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s1 0 No Maintenance
d21: Submirror of d1
State: Okay
Size: 2101552 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t1d0s1 0 No Okay

d6: Mirror
Submirror 0: d16
State: Needs maintenance
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 12288896 blocks
d16: Submirror of d6
State: Needs maintenance
Invoke: after replacing "Maintenance" components:
metareplace d6 c0t0d0s6 <new device>
Size: 12288896 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s6 0 No Last Erred

d7: Mirror
Submirror 0: d17
State: Needs maintenance
Submirror 1: d27
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 16765296 blocks

d17: Submirror of d7
State: Needs maintenance
Invoke: metareplace d7 c0t0d0s7 <new device>
Size: 16765296 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s7 0 No Maintenance

d27: Submirror of d7
State: Okay
Size: 16765296 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t1d0s7 0 No Okay

d26: Concat/Stripe
Size: 12288896 blocks
Stripe 0:
Device Start Block Dbase
c0t1d0s6 0 No
What should i do now? Can metareplace solve everythings perfectly in my case? Should metereplace d6 c0t0d0s6(d16) with c0t1d0s6(d26)

Please help.
# 2  
Old 12-11-2008
No point doing metareplace at this moment. Your disk is failed/failing. You should go for a replacement. Its obvious...
# 3  
Old 12-11-2008
Quote:
Originally Posted by incredible
No point doing metareplace at this moment. Your disk is failed/failing. You should go for a replacement. Its obvious...
do I need to replace both harddisk?
or can d0 and d1 be metareplace?
# 4  
Old 12-11-2008
Again.. don't use the word metareplace...
Your Primary disk seems to have failed. So you will need to detach the primary disk from the secondary and then replace the disk drive with a new one of the similar geomatrical size. copy the partition table from the sec disk and then attach it back

How to Replace a Failed Disk (Solaris Volume Manager Administration Guide) - Sun Microsystems
# 5  
Old 12-11-2008
Thank you for your information.

But, I don't understand the follow part in metastat message

Quote:
d6: Mirror
Submirror 0: d16
State: Needs maintenance
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 12288896 blocks
d16: Submirror of d6
State: Needs maintenance
Invoke: after replacing "Maintenance" components:
metareplace d6 c0t0d0s6 <new device>
Size: 12288896 blocks
Stripe 0:
Device Start Block Dbase State Hot Spare
c0t0d0s6 0 No Last Erred
The above information seem to show that there is only one submirror (d16) running on d6 on my primary harddisk (c0t0d0). Can i conclude that
the mirror is broken? and there is no way to recover my data from my secondary disk.
# 6  
Old 12-11-2008
possibilty is there, but before confirming, can you post the metastat -p command? But need to check whether it was attached at the first place (i doubt so)
# 7  
Old 12-11-2008
if you're not trained in using SVM, don'y proceed. Pls get someone who has practical knowledge on SVM to assist you.
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