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Old 08-09-2010, 07:14 PM   #1
karlochacon
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Registered: Dec 2006
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a lot of Buffer I/O error on device connected to SAN


hi guys

I have a server(x3650 M2) connected to a SAN...it takes a long time to boot with a lot errors like these

any idea how to fix that?
Suse Enterprise 10 SP3

update as soon as I disconnect the HBAs boots up normal and fast and no messages

Code:
 sdi:end_request: I/O error, dev sdh, sector 0
Buffer I/O error on device sdh, logical block 0
end_request: I/O error, dev sdd, sector 209715072
Buffer I/O error on device sdd, logical block 26214384
end_request: I/O error, dev sdi, sector 0
Buffer I/O error on device sdi, logical block 0
end_request: I/O error, dev sdg, sector 209715072
Buffer I/O error on device sdg, logical block 26214384
end_request: I/O error, dev sdh, sector 0
Buffer I/O error on device sdh, logical block 0
end_request: I/O error, dev sdd, sector 209715072
printk: 2 messages suppressed.
Buffer I/O error on device sdh, logical block 0
end_request: I/O error, dev sdd, sector 209715184
 unable to read partition table
sd 5:0:1:1: Attached scsi disk sdh
sd 5:0:1:1: Attached scsi generic sg8 type 0
end_request: I/O error, dev sdi, sector 0
 unable to read partition table
sd 6:0:1:1: Attached scsi disk sdi
sd 6:0:1:1: Attached scsi generic sg9 type 0


end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
Buffer I/O error on device sdd, logical block 1
Buffer I/O error on device sdd, logical block 2
Buffer I/O error on device sdd, logical block 3
end_request: I/O error, dev sdd, sector 0
Buffer I/O error on device sdd, logical block 0
end_request: I/O error, dev sdg, sector 0
Buffer I/O error on device sdg, logical block 0
end_request: I/O error, dev sdg, sector 0
thanks a lot

Last edited by karlochacon; 08-09-2010 at 07:40 PM.
 
Old 08-09-2010, 09:43 PM   #2
karlochacon
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something else

when my Suse 10 SP3 loads when HBA attached I see my LUNs twice

for instance I created LUN1 60GB and I see it twice...? are those 2 related I think the slow load process and the diuplicated LUNs
 
Old 08-10-2010, 01:24 AM   #3
r3sistance
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Is this a new installation or a pre-existing one? I would suggest that it appears there is either a configuration issue or a hardware issue. As you mention it's "duplicated", have you checked to ensure it's not being mounted twice as well, say in different methods.
 
Old 08-10-2010, 08:40 AM   #4
karlochacon
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Quote:
Originally Posted by r3sistance View Post
Is this a new installation or a pre-existing one? I would suggest that it appears there is either a configuration issue or a hardware issue. As you mention it's "duplicated", have you checked to ensure it's not being mounted twice as well, say in different methods.
it's a new installation
 
Old 08-10-2010, 08:53 AM   #5
r3sistance
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I suspect it's a configuration issue, however I am not brilliant with SAN configuration. have you checked with say mount to see if it might be double mounted or something (also check it's not mounted ro)? If this is a new LUN it could also be that there are filing system errors/problems, is it your own SAN or are you just renting a LUN off of a provider?
 
  


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