Re: Snap Server 4500 runnin Guardian O/S
OK, I do not know what the strip size is. Snap has never used anything off the shelf. Contact Douglas at Snap-tech he runs a recovery service and make you a good deal. 1-866-279-2985
Maxtor's, yuck, the worst drives in the industries. 1 could have failed 1 mo after you started it up if not sooner.
The GuardianOS is running on Redhad interprise. Not sure on the early ones, some say Gentoo Linux, not sure.
V2 make these units 5 yrs old?
Look at the log and see if you can determine if you lost both drives at the same time, or 1 failed a year earier and the unit was running in degraded mode.
The Gardian units have sever features that make recovery easy if you turned them on. SNAPSHOTS , is part of the diaster recovery.
If you can make a image clone of the drive, the drive has not failed. Like you suspect, hardware failure. You should be able to view it under linux.
If you did not start up snapshots or did the steps for diaster recovery and do not have the AV active, You can move the drives (clones) to another 4500 that does not have these active. If active you must disable these features. Drive info is saved some where and will detect different drives, the reason this stuff must be disabled. The drives are numbered left to right. Take a sharpy pen and mark the drives. You do not want to get the drives mixed up.
You can monitor the boot process by connecting a monitor, or the full process using the com port (19.2k, n, 8,1 I think) and a null modem cable with terminal.
A few thing you must know. If any of the diaster recover has been setup, you will be forced into diaster recovery mode. If AV was started and not shut down it get corrupted. If not the units will boot as normal. What I discovered is the guradianOS will not touch a drive if it sees a file system. On cold boot it will transfer the OS if a clean drive, but will not format the drive for use. So formatting must be done manually. If you hot swap it will auto format and resync, if only 1 drive failure. With 2 drive failed your set has been broken, and will require some attention.
SpinRite has helped others on minor problems. Most only run Maintance mode, if it finds something it auto switches to recovery. If the data is a must have contact douglas. If you have backups, then you have a little leeway. If there is a problem it will show in the 5% area. This is a area that the tables are located in, I think.
|