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kosys 12-14-2009 06:28 AM

Seagate External HDD getting unmounted after certain period of inactivity
 
Hi All,

This is an external HDD(500 GB) Seagate(Freeagent go), OS is RHEL 5.3.
This external HDD has two primary partitions:

Disk /dev/sda: 500.1 GB, 500107860992 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System
/dev/sda1 1 30401 244196001 83 Linux
/dev/sda2 30402 60801 244188000 83 Linux


Now everytime I'm mounting the hard disk, after certain period of inactivity, its getting unmounted and then remounted in 'Read only' mode. Say, 1 or 2 minutes after mounting in read-write mode, whenever I'm trying to copy some files to HDD, its giving the following error:

[root@demo ~]# tar -zcvf /webb1/test.txt test_bkp/
tar: /webb1/test.txt: Cannot open: Read-only file system
tar: Error is not recoverable: exiting now
test_bkp/
test_bkp/test12009-12-08
test_bkp/stopERP
test_bkp/test3
test_bkp/startERP
test_bkp/test_bkp.log


Following is an excerpt of the /var/log/messages(when files are being copied to the external HDD):


Dec 11 11:14:40 demo kernel: sd 6:0:0:0: Device not ready: <6>: Current: sense k
ey: Not Ready
Dec 11 11:14:40 demo kernel: Add. Sense: Logical unit not ready, initializin
g command required
Dec 11 11:14:40 demo kernel:
Dec 11 11:14:40 demo kernel: end_request: I/O error, dev sda, sector 1052751
Dec 11 11:14:40 demo kernel: printk: 110 messages suppressed.
Dec 11 11:14:40 demo kernel: Buffer I/O error on device sda1, logical block 1315
86
Dec 11 11:14:40 demo kernel: lost page write due to I/O error on sda1
Dec 11 11:14:40 demo kernel: Aborting journal on device sda1.
Dec 11 11:15:07 demo kernel: ext3_abort called.
Dec 11 11:15:07 demo kernel: EXT3-fs error (device sda1): ext3_journal_start_sb:
Detected aborted journal
Dec 11 11:15:07 demo kernel: Remounting filesystem read-only
Dec 11 11:21:14 demo kernel: sd 6:0:0:0: Device not ready: <6>: Current: sense k
ey: Not Ready
Dec 11 11:21:14 demo kernel: Add. Sense: Logical unit not ready, initializin
g command required
Dec 11 11:21:14 demo kernel:
Dec 11 11:21:14 demo kernel: end_request: I/O error, dev sda, sector 489969049
Dec 11 11:21:14 demo kernel: Buffer I/O error on device sda2, logical block 1971
23
Dec 11 11:21:14 demo kernel: lost page write due to I/O error on sda2
Dec 11 11:21:14 demo kernel: Aborting journal on device sda2.
Dec 11 11:21:42 demo kernel: ext3_abort called.
Dec 11 11:21:42 demo kernel: EXT3-fs error (device sda2): ext3_journal_start_sb:
Detected aborted journal
Dec 11 11:21:42 demo kernel: Remounting filesystem read-only

Sometimes its also throwing the following error when giving 'ls -l' command:

# ls -l
ls: reading directory .: Input/output error
total 0

This is a serious issue.....if anyone can highlight as to where the problem lies......with the HDD or with the Kernel.......a suggestion is highly appreciable.

Thanks and Regards,
Kosys

pixellany 12-14-2009 08:02 AM

Please post your thread in only one forum. Posting a single thread in the most relevant forum will make it easier for members to help you and will keep the discussion in one place. This thread is being closed because it is a duplicate.


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