Oracle have deleted the best ZFS platform I know, the X4540. Does anyone know of an equivalent system? None of the current Oracle/Sun offerings come close. -- Ian.
I have this with 36 2TB drives (and 2 separate boot drives). http://www.colfax-intl.com/jlrid/SpotLight_more_Acc.asp?L=134&S=58&B=2267 It''s not exactly the same (it has cons/pros), but it is definitely less expensive. I''m running b147 on it with an LSI controller. -Moazam On Mon, Nov 8, 2010 at 7:22 PM, Ian Collins <ian at ianshome.com> wrote:> Oracle have deleted the best ZFS platform I know, ?the X4540. > > Does anyone know of an equivalent system? ?None of the current Oracle/Sun > offerings come close. > > -- > Ian. > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
> I have this with 36 2TB drives (and 2 separate boot drives). > > http://www.colfax-intl.com/jlrid/SpotLight_more_Acc.asp?L=134&S=58&B=2267That''s just a Supermicro SC847. http://www.supermicro.com/products/chassis/4U/?chs=847 Stay away from the 24 port expander backplanes. I''ve gone thru several and they still don''t work right - timeout and dropped drives under load. The 12-port works just fine connected to a variety of controllers. If you insist on the 24-port expander backplane, use a non-expander equipped LSI controller to drive it. I got fed up with the 24-port expander board and went with -A1 (all independent) and that''s worked much more reliably.
On Mon, Nov 08, 2010 at 11:51:02PM -0800, matthew patton wrote:> > I have this with 36 2TB drives (and 2 separate boot drives). > > > > http://www.colfax-intl.com/jlrid/SpotLight_more_Acc.asp?L=134&S=58&B=2267 > > That''s just a Supermicro SC847. > > http://www.supermicro.com/products/chassis/4U/?chs=847 > > Stay away from the 24 port expander backplanes. I''ve gone thru > several and they still don''t work right - timeout and dropped drives > under load. The 12-port works just fine connected to a variety of > controllers. If you insist on the 24-port expander backplane, use a > non-expander equipped LSI controller to drive it.What do you mean by non-expander equipped LSI controller?> > I got fed up with the 24-port expander board and went with -A1 (all > independent) and that''s worked much more reliably.Ray
>http://www.supermicro.com/products/chassis/4U/?chs=847 > >Stay away from the 24 port expander backplanes. I''ve gone thru several >and they still don''t work right - timeout and dropped drives under load. >The 12-port works just fine connected to a variety of controllers. If you >insist on the 24-port expander backplane, use a non-expander equipped LSI >controller to drive it.I was wondering if you can clarify. Isn''t the case that all 24-port backplane utilize expander chips directly on the backplane to support their 24 ports or are they utilized only when something else, such as another 12-port backplane, is connected to one of the cascade ports in the back? What do you mean by a non-expander equipped LSI controller? BTW, I have three SuperMicro SC846 systems, which 24-port backplanes, and haven''t any problem with them. -- Maurice Volaski, maurice.volaski at einstein.yu.edu Computing Support Dominick P. Purpura Department of Neuroscience Albert Einstein College of Medicine of Yeshiva University
On Nov 9, 2010, at 12:24 PM, Maurice Volaski wrote:> >> http://www.supermicro.com/products/chassis/4U/?chs=847 >> >> Stay away from the 24 port expander backplanes. I''ve gone thru several >> and they still don''t work right - timeout and dropped drives under load. >> The 12-port works just fine connected to a variety of controllers. If you >> insist on the 24-port expander backplane, use a non-expander equipped LSI >> controller to drive it. > > I was wondering if you can clarify. Isn''t the case that all 24-port > backplane utilize expander chips directly on the backplane to support > their 24 ports or are they utilized only when something else, such as > another 12-port backplane, is connected to one of the cascade ports in the > back?I think he is referring to the different flavors of the 847, namely the one that uses expanders (E1, E2, E16, E26) vs. the one that does not (the 847A). This page about a storage server build does a very good job of detailing all the different versions of the 847: http://www.natecarlson.com/2010/05/07/review-supermicros-sc847a-4u-chassis-with-36-drive-bays/ --Ware