Sure. Monday it is. Benny On Fri, Oct 14, 2011 at 3:34 PM, Boaz Harrosh <bharrosh@xxxxxxxxxxx> wrote: > Thanks Benny. > > Is it OK if we merge, pnfs tree and open-osd, on Monday in BAT first thing? > Tonight it's to late, and tomorrow I'm already flying. So Monday. > > Have a safe trip > Boaz > > On 10/14/2011 07:50 PM, Benny Halevy wrote: >> Awesome! >> >> Benny >> -----Original Message----- >> From: Boaz Harrosh <bharrosh@xxxxxxxxxxx> >> Sender: linux-nfs-owner@xxxxxxxxxxxxxxx >> Date: Fri, 14 Oct 2011 19:24:14 >> To: Welch, Brent<welch@xxxxxxxxxxx>; open-osd<osd-dev@xxxxxxxxxxxx>; NFS list<linux-nfs@xxxxxxxxxxxxxxx>; linux-fsdevel<linux-fsdevel@xxxxxxxxxxxxxxx> >> Subject: [PATCHSET 0/1 0/6] ore: RAID5 Support >> >> >> I'm proud to present RAID5 support to ORE. Which enables raid5 for both >> exofs and pnfs-objects-layout driver. >> >> The ORE with raid0/1/5 and soon 6 support has become a compact and abstract >> library, that with not a lot of effort, can support not only OSD but any >> type of devices. For example BTRFS, does it have a RAID5 support yet? if >> not it could use ORE. The ORE gets a bunch of pages at the top and produces >> bios for each device at the bottom. The libosd API can be easily abstracted >> and be used for block devices, just the same. The RAID layout supported by >> ORE is very rich, multi layered striping/mirroring/raid. even reacher then >> stacked MD. You can read about this layout here: >> http://git.open-osd.org/gitweb.cgi?p=ietf-rfc5664.git;a=blob_plain;f=draft-ietf-nfsv4-rfc5664bis.html;hb=boaz2 >> Start at: 5.3. "Data Mapping Schemes" up to: >> 5.4.5. "RAID Usage and Implementation Notes" >> >> There where some problems with the previous patchset here are >> the differences I squashed it to a new patchset at osd/linux-next. >> >> [PATCH 1/1] SQUASHME: into: ore: Only IO one group at a time (API change) >> >> And without farther ado Here is the RAID5 support. This is highly complicated >> stuff, for humble me at least, and I would appreciate any review and/or comments >> you guys can give it. Thanks in advance. (Pretty Please? :-)) >> >> [PATCH 1/6] ore: Make ore_calc_stripe_info EXPORT_SYMBOL >> [PATCH 2/6] ore: RAID5 read >> [PATCH 3/6] ore: RAID5 Write >> [PATCH 4/6] exofs: Support for RAID5 read-4-write interface. >> [PATCH 5/6] pnfs-obj: Support for RAID5 read-4-write interface. >> [PATCH 6/6] ore: Enable RAID5 mounts >> >> A tree with above plus all prerequisites is at: >> $ git clone git://open-osd.org/linux-open-osd linux-next >> [http://git.open-osd.org/gitweb.cgi?p=linux-open-osd.git;a=shortlog;h=refs/heads/merge_and_compile] >> >> The code passes my tests, the highlight of which is git-clone linux and compare to >> and identical clone on ext4. But there must be month of farther testing done on this >> to get it better. For example. Aligned on stripe IO write back should be improved on >> all the way down to the VFS layer. >> >> Thanks >> Boaz >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-nfs" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
