Hi It sounds like you're going to use a "full backup" software such as Legato. However, I will do my estimates based on TSM, which uses incremental backups, and version management to be able to do point-in-time restores of files(older version of a file than the latest) and applications.
I'd probably propose a IBM 3584 Anaconda with at least 3 drives, preferable
fibre attached.
I guess that you are going to use TSM with this library. Therefore, you
will probably not use full backups, but incremental. And, on fileservers, I
recommend using more than 3 versions(which is standard within TSM). This
will grow your total storage by the number of versions you want to use.
It' very hard to calculate total storage requirements, when you don't tell
us what kind of data that is going to be kept in the library(SQL databases,
fileservers and so on).
However, you can count with about 10% change every night on a fileserver,
and, if not to large, use full backups of databases.
I'd say you'll be storing about 10TB total, and preferable, have media
protection using copypools, which means another 10TB.
Best Regards
Daniel Sparrman
-----------------------------------
Daniel Sparrman
Exist i Stockholm AB
Bergk�llav�gen 31D
192 79 SOLLENTUNA
V�xel: 08 - 754 98 00
Mobil: 070 - 399 27 51
Zosimo Noriega
<[EMAIL PROTECTED] To: [EMAIL PROTECTED]
OM> cc:
Sent by: "ADSM: Subject: Tape Library Capacity
Requirement.
Dist Stor
Manager"
<[EMAIL PROTECTED]
.EDU>
2002-03-11 10:52
Please respond to
"ADSM: Dist Stor
Manager"
Please help me to calculate the require capacity of the tape library. I
have 3.7 TB of data and 4 versions of Archive (with 30 days retention
period) and 1 version of backup (full backup) will be implemented.
How can i calculate the required capacity?
Thanks for your help in advance.
Zosi Noriega
ADNOC-UAE.
