Removable IDE racks at avlogic.com:
Item#11012507 $12.50 (you save $7.00US)
Item#19012507 $15.00 (you save $9.00US)
Both have the same manufacturer part #. Cute.
Regards,
Steve Oswald
On Thursday 15 August 2002 12:28 pm, Coffin Michael C wrote:
> Again, thanks for all of the great suggestions and info. What I have is
> two 120Gig EIDE hard drives:
>
> /dev/hda Primary boot drive
> /dev/hdc Backup drive
>
> Both drives are mounted in cold-swappable removable racks. What I would
> like to do is use hdc as a backup medium for hda. On Sunday I'll run a
> full clone of hda to hdc (probably using dd, and probably in single user
> mode). Then on Monday-Saturday I'll use a diff / tar approach to zip up and
> copy over incremental changes into a /backup directory on hdc. This will
> give me a 7 day backup scheme that should allow me to swap drives in the
> event of a total failure and just boot off of the backup drive (mounted in
> the hda chasis), and also allow me to recover grom "logical errors" by just
> copying files from hdc to hda if necessary.
>
> It should be a lot faster/cheaper than using tapes, and if I decide I want
> more than a 7 day retention I can just swap hdc's every week (a 120Gig
> Western Digital ATA100 7200 RPM drive with 8Meg cache is only $171.00 at
> AVLogic.com - they're terrific!). By the way, the lockable removable racks
> with power/IDE activity lights are only $12 at AVLogic.com and work great
> if anyone is interested.
>
> Again, thanks for all of the advice and info - it is much appreciated. :)
>
> Michael Coffin, VM Systems Programmer
> Internal Revenue Service - Room 6527
> 1111 Constitution Avenue, N.W.
> Washington, D.C. 20224
>
> Voice: (202) 927-4188 FAX: (202) 622-3123
> [EMAIL PROTECTED]
>
>
>
> -----Original Message-----
> From: Ledbetter, Scott E [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, August 15, 2002 7:45 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Cloning i386 Hard Drives - Like DDR
>
>
> RAID1 protects against physical disk disaster, but not logical problems.
> For example, if your database is corrupted, with a RAID1 scheme it is
> corrupted on both copies.
>
> Scott Ledbetter
> StorageTek
>
> -----Original Message-----
> From: John Summerfield [mailto:[EMAIL PROTECTED]]
> Sent: August 14, 2002 8:51 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Cloning i386 Hard Drives - Like DDR
>
> On Thu, 15 Aug 2002 04:58, you wrote:
> > Aaah, good - that's what I thought you meant. Yes, of course it would
> > be best to shutdown the system before cloning the disk, but what I
> > intend to do is just backup my running system to a spare hard drive
> > (of identical size and geometry) in the middle of the night via a cron
> > job. So worse case, it should be the same as recovering from a sudden
> > power-off (which shouldn't be too bad). I may shutdown sendmail,
> > imap, httpd and a few others guys before doing the backup since they
> > should be the only things (of any importance) that might update
> > important files.
>
> Why not just implement RAID1?
--
Steven J. Oswald
Systems Consulting Engineer
OzTech Systems Consulting, Inc.
[EMAIL PROTECTED]
Phone: (815) 337-1036
Cell: (815) 715-4065
