03-09-2009
Unable to mount/find new drives
Hi, I work offshore and we have a system that records excessive amounts of data (Terabytes), therefore we changed the 16 x 400GB drives to 16 x 1TB drives. However, since doing this, upon bootup, the system does not recognize the new drives. These drives are external drives in a chassis which is connected to the computer via SCSI lead. See quote below email to IT assistant:
Quote:
Yesterday we switched the drive chassis off and changed the hard drives from 400 GB to 1 TB. We then switched the chassis back on and it initialized itself which took 6 hours. We did not switch off the computer at all.
We then tried to reboot the computer and the following message keeps coming up
Quote:
No such file or directory while trying to open / dev/vol1/raid1
/dev/vol1/raid1:
The superblock could not be read or does not describe a correct ext2 file system. If the device is valid and it really contains an ext2 file system (and not swop or ufs or something else), then the superblock is corrupt and you might try running e2fsck with an alternate superblock
e2fsck -b 8193 <device> [ failed ]
it then come up with alt d for maintenance menu or enter to re-boot
Any help would be appreciated,
Kind regards
Russ
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LEARN ABOUT FREEBSD
mlxcontrol
MLXCONTROL(8) BSD System Manager's Manual MLXCONTROL(8)
NAME
mlxcontrol -- Mylex DAC-family RAID management utility
SYNOPSIS
mlxcontrol <command> [args]
mlxcontrol status [-qv] [drive]
mlxcontrol rescan controller [controller ...]
mlxcontrol detach drive [drive ...]
mlxcontrol detach -a
mlxcontrol check drive
mlxcontrol config controller
mlxcontrol help command
DESCRIPTION
The mlxcontrol utility provides status monitoring and management functions for devices attached to the mlx(4) driver.
Controller names are of the form "mlxN" where N is the unit number of the controller. Drive names are of the form "mlxdN" where N is the
unit number of the drive. Do not specify the path to a device node.
status Print the status of controllers and system drives. If one or more drives are specified, only print information about these drives,
otherwise print information about all controllers and drives in the system. With the -v flag, display much more verbose informa-
tion. With the -q flag, do not print any output. This command returns 0 if all drives tested are online, 1 if one or more drives
are critical and 2 if one or more are offline.
rescan Rescan one or more controllers for non-attached system drives (e.g. drives that have been detached or created subsequent to driver
initialisation). If the -a flag is supplied, rescan all controllers in the system.
detach Detach one or more system drives. Drives must be unmounted and not opened by any other utility for this command to succeed. If the
-a flag is supplied, detach all system drives from the nominated controller.
check Initiate a consistency check and repair pass on a redundant system drive (e.g. RAID1 or RAID5). The controller will scan the system
drive and repair any inconsistencies. This command returns immediately; use the status command to monitor the progress of the
check.
rebuild Requires two arguments, controller and physdrive as specified in the output of the status command. All system drives using space on
the physical drive physdrive are rebuilt, reconstructing all data on the drive. Note that each controller can only perform one
rebuild at a time. This command returns immediately; use the status command to monitor the progress of the rebuild.
config Print the current configuration from the nominated controller. This command will be updated to allow addition/deletion of system
drives from a configuration in a future release.
help Print usage information for command.
AUTHORS
The mlxcontrol utility was written by Michael Smith <msmith@FreeBSD.org>.
BUGS
The config command does not yet support modifying system drive configuration.
Error log extraction is not yet supported.
BSD
April 10, 2000 BSD