Re: RAW vs. JFS question
2004-01-22 19:36:43
Bill,
JFS journalling doesn't journal data changes, only changes to metadata. So in
a filesystem with lots of file and directory creates and deletes its useful.
In the TSM situation, such changes are rare, and so JFS doesn't buy you a lot
in terms of recoverability.
Steve
Steve Harris
AIX and TSM Admin
Queensland Health, Brisbane Australia
>>> bill.boyer AT VERIZON DOT NET 23/01/2004 0:38:54 >>>
The "new" TSM runing guide recommends using RAW volumes for performance
reasons. I have a client that doesn't want to go RAW because the JFS logging
goes away. I'm not that AIX savy to be able to argue one way or the other
with him...
Going RAW for performance, does that take away from recoverability in the
case of system crashes or filesystem problems?
Bill Boyer
"Some days you are the bug, some days you are the windshield." - ??
***********************************************************************************
This email, including any attachments sent with it, is confidential and for the
sole use of the intended recipients(s). This confidentiality is not waived or
lost, if you receive it and you are not the intended recipient(s), or if it is
transmitted/received in error.
Any unauthorised use, alteration, disclosure, distribution or review of this
email is prohibited. It may be subject to a statutory duty of confidentiality
if it relates to health service matters.
If you are not the intended recipients(s), or if you have received this e-mail
in error, you are asked to immediately notify the sender by telephone or by
return e-mail. You should also delete this e-mail message and destroy any hard
copies produced.
***********************************************************************************
|
<Prev in Thread] |
Current Thread |
[Next in Thread>
|
- Re: RAW vs. JFS question, (continued)
- Re: RAW vs. JFS question, Stef Coene
- Re: RAW vs. JFS question, Richard Sims
- Re: RAW vs. JFS question, French, Michael
- Re: RAW vs. JFS question, Zoltan Forray/AC/VCU
- Re: RAW vs. JFS question, Richard Sims
- Re: RAW vs. JFS question, James Hunt
- Re: RAW vs. JFS question, Paul Zarnowski
- Re: RAW vs. JFS question,
Steve Harris <=
- Re: RAW vs. JFS question, Coats, Jack
- Re: RAW vs. JFS question, Zoltan Forray/AC/VCU
- Re: RAW vs. JFS question, Robin Sharpe
|
|
|