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Read only after 20 min if mounted on the linux System

Hi All

I am running linux centos 5.3 and got a iomega 500 Gb external HDD and when i mount it it is getting mounted and i can read and write into the external device but after 15 to 20 min it becomes read only system and i formatted the device to fat, ntfs, ext2 , ext3 etc

no luck
please advice me

thanks
Shiju Jacob  
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Shiju Jacob
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Shiju Jacob
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1 Solution
 
joolsCommented:
usb or dnas?
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Shiju JacobInfo SecurityAuthor Commented:
usb device
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ravenplCommented:
Just today encountered same problem with 1TB Seagate freeagent. So we can assume it's not hdd problem.
I suspect it has something to do with the power management, yet it's to dicover.
my kernel get IO errors and remounts it R-O.
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ravenplCommented:
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ravenplCommented:
Yeap, looks like the allow_restart trick did the thing. The access stalls for few seconds, but then works again.
http://ubuntuforums.org/showthread.php?t=494673
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Shiju JacobInfo SecurityAuthor Commented:
i tried will all the file system but same issue now i mount using cifs from windows to linux
let you know the status
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Shiju JacobInfo SecurityAuthor Commented:
i tried with all the file system but the same issue
now i mount using cifs from windows to linux
let you know the status
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ravenplCommented:
One more thing, I changed both values as follows (the 1024 is reported wrong value, max should read 128)
echo 128 > /sys/block/$1/device/max_sectors
echo 1   > /sys/block/$1/device/scsi_disk:*/allow_restart
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ravenplCommented:
I suppose it works for You as well, why B only?
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Shiju JacobInfo SecurityAuthor Commented:
yes it worked for me
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