[OpenAFS] vos listvol and vos exam
Thu, 28 Jun 2007 09:53:29 -0400
Steven Jenkins wrote:
> On 6/28/07, *Steve Devine* <email@example.com <mailto:firstname.lastname@example.org>>
> Steven Jenkins wrote:
> > On 6/28/07, *Steve Devine* <email@example.com
> <mailto:firstname.lastname@example.org> <mailto:email@example.com
> > wrote:
> > We have switched some of our servers over to binaries compiled
> > with fast
> > restart.
> > Others may disagree, but my opinion is that Fast Restart is not yet
> > ready for production use. Testing is always helpful, though.
> Man I'm sorry to hear that .. we used this because we wanted to
> the down time for bringing a server back on line when it has 1.2
> possible disk space. That a long salvage window but maybe it would
> been worth it.
> I was talking about something else not being ready for production, not
> Fast Restart (which is fine for production). My apologies.
> Fast Restart can shorten your startup times, but it leaves the System
> Administrator to do the salvaging. Were I to use Fast Restart, I would
> - parse the output of FileLog after startup (or vos listvol vs vos
> listvldb output) to get a list of volumes to salvage manually,
> - possibly prioritize those (eg, bring RW's online first, not RO's
> that have good copies elsewhere, etc)
> - manually salvage them
> I'd have that in a script to be run after a restart.
> The benefit of Fast Restart is that even if you have a lot of volumes
> that need to be salvaged, the fileserver can be serving other volumes
> while you manually salvage the rest. Keep in mind that you'll have to
> salvage those one at a time or bos will shut the fileserver down. If
> you have to salvage a lot of volumes, Fast Restart will actually slow
> down your recovery time, so you'll want to consider that trade-off.
> (ie, you can't salvage in parallel while the fileserver is running)
Well from what I can see I am not sure I can count on the FileLog. Is
there anyway to make the fileserver keep more than FileLog and
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