Veritas-bu

[Veritas-bu] SIZE_DATA_BUFFERS number for HP LTO3 drives [C1]

2007-03-26 04:44:55
Subject: [Veritas-bu] SIZE_DATA_BUFFERS number for HP LTO3 drives [C1]
From: chris at fil.ion.ucl.ac.uk (Chris Freemantle)
Date: Mon, 26 Mar 2007 09:44:55 +0100
Misha,

Try 256 kB

if you search on "LTO-3 SIZE_DATA_BUFFERS"  and "netbackup tuning 
guide" you will find a number of very useful documents. As a starter, 
have a look at -

h71028.www7. hp .com/ERC/downloads/5982-9971EN.pdf

http://seer.entsupport.symantec.com/docs/244652.htm

You should be aware that Windows server 200 SP1 limits the 
SIZE_DATA__BUFFERS to 64kB, see

http://support.microsoft.com/kb/907418/

this seems to be fixed in SP2 (thanks to Ric Davis for that info)



>http://seer.support.veritas.com/docs/183702.htm
>
>Sugest "NOTE: For Digital Linear Tape (DLT) drives, the number that seems
>to give the best performance for SIZE_DATA_BUFFERS is 65536 "
>
>I wonder if anyone has SIZE_DATA_BUFFERS number for HP LTO3 drives ?
>
>
>--
>Misha Pavlov
>This message uses only 100% recycled electrons.
>
>*************************************************************************
>This message and any attachments (the "message") are confidential and
>intended solely for the addressees.
>Any unauthorised use or dissemination is prohibited.
>E-mails are susceptible to alteration.  
>Neither SOCIETE GENERALE nor any of its subsidiaries or affiliates
>shall be liable for the message if altered, changed or falsified.
>
>*************************************************************************


-- 
---

REMEMBER- There is only one certainty about storage systems - they 
*will* fail !
This includes backup and archiving systems.
If you want to be paranoid, make your own backups as well.

For FIL computer support issues, please email

   support at fil.ion.ucl.ac.uk

rather than individual team members

Chris Freemantle
Data Manager
Wellcome Trust Centre for Neuroimaging

Tel. +44 (0)20 7833 7472 reception
Tel. +44 (0)20 7833 7496 direct
Fax  +44 (0)20 7813 1420

Home Page:  http://www.fil.ion.ucl.ac.uk
-------------- next part --------------
An HTML attachment was scrubbed...
URL: 
http://mailman.eng.auburn.edu/pipermail/veritas-bu/attachments/20070326/adae337a/attachment.html

<Prev in Thread] Current Thread [Next in Thread>