giza: Giza White Mage (Default)
[personal profile] giza
I got home last night, and saw that the previous night's backup had failed. So I tried retensioning the tape (standard procedure), and started getting weird noises from my tape drive as the tape slowed down and came to a complete stop. I tried other tapes, and they all did the same thing, too. It looks like after 4 years my STT8000A TR-4 tape drive has finally bit the dust. That's not too bad, considering that I used that drive daily for the first 2 years that I had it.

So, it looks like I get to replace it with this drive, which is funny, because it's HALF as expensive as the same model from another store!
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(no subject)

Date: 2003-10-21 08:17 am (UTC)
From: [identity profile] giza.livejournal.com
RAID 1 is not a backup solution, it is a redunancy solution which is somewhat different. Doing an rm -rf / accidentally will destroy all your data on a RAID-1 setup, whereas with tape/DVD backups you restore from the latest backup.

(deleted comment)

(no subject)

Date: 2003-10-21 09:05 am (UTC)
From: [identity profile] giza.livejournal.com
I'll stick with my tape drive and have 7 backups (from 7 tapes), thanks.

Backup technologies.

Date: 2003-10-21 11:17 am (UTC)
From: [identity profile] cjthomas.livejournal.com
RAID 1 is not a backup solution, it is a redunancy solution which is somewhat different. Doing an rm -rf / accidentally will destroy all your data on a RAID-1 setup, whereas with tape/DVD backups you restore from the latest backup.

That's why my backup solution, when I implement it (in my next life), will be a set of hard disks in removable drive enclosures.

I've thought about tape, but it seems like I'd either quickly be in "sets of a hundred tapes" land, or have to shell out an absurd amount of money for high capacity, especially if I wanted to keep the tape drive after the next fileserver upgrade.

Thought briefly about CDs, but I'd be in "sets of 100 CDs" land _now_.

A tempting alternative is checking out one of the filesystems that does versioning (allowing you to roll back changes), and putting that on top of a RAID, but under pathalogical conditions that would require a lot more space than a straight snapshot backup would.

Price differences.

Date: 2003-10-21 11:10 am (UTC)
From: [identity profile] cjthomas.livejournal.com
So, it looks like I get to replace it with this drive, which is funny, because it's HALF as expensive as the same model from another store!

Um, you're looking at IDE vs. SCSI models. The IDE model from the other store is $110.

Re: Price differences.

Date: 2003-10-21 02:47 pm (UTC)
From: [identity profile] giza.livejournal.com
Oopsie. I just earlier today figured out how to parse Seagate part numbers (http://www.seagate.com/support/kb/tape/tapemodelinter.html).

You'd think that STT28000 is entirely different from STT38000A-M, yet they are both similar pieces of hardware.

(no subject)

Date: 2003-10-21 05:01 pm (UTC)
From: [identity profile] thraxarious.livejournal.com
Gimme DLT any day...

and if I can't afford it, I'll deal with DAT.

(no subject)

Date: 2003-10-22 08:34 am (UTC)
From: [identity profile] khakiwolf.livejournal.com
If I had the money I would seriously buy the biggest SCSI drive I could. Murrr, 20,000 RPM!

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giza: Giza White Mage (Default)
Douglas Muth

April 2012

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