Re: ACFS vs OCFS

Il giorno giovedì 10 gennaio 2013 16:21:48 UTC+1, Mladen Gogala ha scritto:
> On Wed, 09 Jan 2013 19:43:04 +0000, Mladen Gogala wrote:
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> > I've been reading about both file systems. The problem with ACFS is that
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> > it isn't open source file system so I cannot say for sure, but it
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> > appears that ACFS is very similar to OCFS, only it uses the services of
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> > the underlying volume manager (ASM) instead of OCFS which starts its own
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> > lock manager. Extents and directory structure looks remarkably similar
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> > to me, based on what little I was able to find on the Metalink. Does
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> > anybody have any other information?
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> Well, I haven't been reading enough. It is not possible to keep database
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> files on ACFS. Also, it's a different beast from OCFS. The idea was to
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> maintain a backup, that I can switch to using RMAN and backup that backup
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> to tape for safekeeping. The database is two node RAC on 64 bit Red Hat
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> Linux 6.3 with the data files in ASM diskgroups. I was hoping to get by
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> without installing OCFS2 because OCFS, in contrast with ACFS cannot be
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> resized. If the database grows, system admin would have to add new space
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> to the logical volume and reformat it using mkfs. ACFS can be re-sized
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> and it doesn't require a new installation.
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> However, Oracle responded: it is not possible to keep database files on
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> ACFS. Bummer.
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> --
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> Mladen Gogala
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> The Oracle Whisperer
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> http://mgogala.byethost5.com

where did you see you cannot resize acfs? Received on Sat Jan 11 2014 - 20:58:00 CET