William L. Maltby wrote:
On Mon, 2009-09-21 at 17:05 -0700, Bazooka Joe wrote:
I have a usb hd that I use for backup. Occasionally it dies.
scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device Buffer I/O error on device sdc1, logical block 0 lost page write due to I/O error on sdc1 EXT2-fs error (device sdc1): read_inode_bitmap: Cannot read inode bitmap - block_group = 129, inode_bitmap = 4227073 scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device Buffer I/O error on device sdc1, logical block 0 lost page write due to I/O error on sdc1 EXT2-fs error (device sdc1): ext2_readdir: bad page in #2 scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device Buffer I/O error on device sdc1, logical block 0 lost page write due to I/O error on sdc1 EXT2-fs error (device sdc1): ext2_get_inode: unable to read inode block - inode=2, block=1027 scsi 6:0:0:0: rejecting I/O to dead device scsi 6:0:0:0: rejecting I/O to dead device Buffer I/O error on device sdc1, logical block 0 lost page write due to I/O error on sdc1 EXT2-fs error (device sdc1): ext2_readdir: bad page in #2
If i unmount it and try to remount it it says sdc1 does not exist.
It may not be the USB drive. I have one that daoe the same, usually only after long periods oh high (in)activity.
On another node, no problems ever using that same drive.
On the system with the problem, CentOS 4.7, Via Kt-400A chipset.
One the other system, Centos 5.3, Via KT-880 chipset.
I've not bothered to google yet, since it seems to occur after leaving it attached for long periods and what I do doesn't take long
Maybe there's a clue?
This can happen if the drive has power-saving features and it's gone to sleep after no activity.
What does 'sdparm -a /dev/sdc' yield? And what make/model is the disk?