similar to: Supermicro SAS/SATA controllers?

I have a 24 x 1TB system being used as an NFS file server. Seagate SAS disks connected via an LSI 9211-8i SAS controller, disk layout 2 x 11 disk RAIDZ2 + 2 spares. I am using 2 x DDR Drive X1s as the ZIL. When we write anything to it, the writes are always very bursty like this: ool 488K 20.0T 0 0 0 0 xpool 488K 20.0T 0 0 0 0 xpool

Interesting flash technology overview and SSD review here: http://www.anandtech.com/cpuchipsets/intel/showdoc.aspx?i=3403 and another review here: http://www.tomshardware.com/reviews/Intel-x25-m-SSD,2012.html Regards, -- Al Hopper Logical Approach Inc,Plano,TX al at logical-approach.com Voice: 972.379.2133 Timezone: US CDT OpenSolaris Governing Board (OGB) Member - Apr 2005

Hi, I don''t know if it''s already been discussed here, but while thinking about using the OCZ Vertex 2 Pro SSD (which according to spec page has supercaps built in) as a shared slog and L2ARC device it stroke me that this might not be a such a good idea. Because this SSD is MLC based, write cycles are an issue here, though I can''t find any number in their spec. Why do I

Hi I''m running OpenSolaris 148 on a few boxes, and newer boxes are getting installed as we speak. What would you suggest for a good SLOG device? It seems some new PCI-E-based ones are hitting the market, but will those require special drivers? Cost is obviously alsoo an issue here.... Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 roy at karlsbakk.net

Hi all, Sorry for the offtopic question. I hope though that others on this list or reading the archive find the answers useful too. It seems the Adaptec 1405 4port SAS HBA I bought only works with RHEL and SuSE through a closed source driver, and thus is quite useless :-( I was stupid enought to think "Works with RHEL and SuSE" meant "Certified for RHEL and SuSE, but driver in

Chris Mauritz wrote: > > The 32bit PPC release is for the older G3/G4 macs, no? I've got a > pile of unused G4 400-800mhz powermacs just sitting around The ppc32 distro will work on any NewWorld G3, G4 based machine ( and 32bit ibm power, like the older rs6k's ) - it _also_ works fine on the MacMini and G4 Xserve's. With some common sense tweaks, a G4 450Mhz is a very

On Fri, 28 Oct 2016 18:50, Alessandro Baggi wrote: > Il 28/10/2016 16:28, Valeri Galtsev ha scritto: >> On Fri, October 28, 2016 2:42 am, Alessandro Baggi wrote: >> > Il 27/10/2016 19:38, Yamaban ha scritto: >> > > For my personal use I would replace that Drive asap. >> > > - There is no warranty for it anymore (time since buy) >> > > -

http://www.lsi.com/channel/about_channel/whatsnew/warpdrive_slp300/index.html Good stuff for ZFS. Fred -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20101117/d48186f0/attachment.html>

On Wed, Jul 9, 2008 at 1:12 PM, Tim <tim at tcsac.net> wrote: > Perfect. Which means good ol'' supermicro would come through :) WOHOO! > > AOC-USAS-L8i > > http://www.supermicro.com/products/accessories/addon/AOC-USAS-L8i.cfm Is this card new? I''m not finding it at the usual places like Newegg, etc. It looks like the LSI SAS3081E-R, but probably at 1/2 the

This must be resliver day :) I just had a drive failure. The hot spare kicked in, and access to the pool over NFS was effectively zero for about 45 minutes. Currently the pool is still reslivering, but for some reason I can access the file system now. Resliver speed has been beaten to death I know, but is there a way to avoid this? For example, is more enterprisy hardware less susceptible to

Anyone know of a SATA and/or SAS HBA with battery backed write cache? Seems like using a full-blown RAID controller and exporting each individual drive back to ZFS as a single LUN is a waste of power and $$$. Looking for any thoughts or ideas. Thanks. -Matt -- This message posted from opensolaris.org

On Fri, October 28, 2016 2:42 am, Alessandro Baggi wrote: > Il 27/10/2016 19:38, Yamaban ha scritto: >> For my personal use I would replace that Drive asap. >> - There is no warranty for it anymore (time since buy) >> - You can't buy it new anymore (discontinued) >> - There are more reliable drives available. >> >> I'd go for a Samsung Evo 850, that

So, when you add a log device to a pool, it initiates a resilver. What is it actually doing, though? Isn''t the slog a copy of the in-memory intent log? Wouldn''t it just simply replicate the data that''s in the other log, checked against what''s in RAM? And presumably there isn''t that much data in the slog so there isn''t that much to check? Or

Hi!We''re trying to pinpoint our performance issues and we could use all the help to community can provide. We''re running the latest version of Nexenta on a pretty powerful machine (4x Xeon 7550, 256GB RAM, 12x 100GB Samsung SSDs for the cache, 50GB Samsung SSD for the ZIL, 10GbE on a dedicated switch, 11x pairs of 15K HDDs for the pool). We''re connecting a single Linux

We have a SunFire X4500 running Solaris 10U5 which does about 5-8k nfs ops of which about 90% are meta data. In hind sight it would have been significantly better to use a mirrored configuration but we opted for 4 x (9+2) raidz2 at the time. We can not take the downtime necessary to change the zpool configuration. We need to improve the meta data performance with little to no money. Does anyone

I posted a thread on this once long ago[1] -- but we''re still fighting with this problem and I wanted to throw it out here again. All of our hardware is from Silicon Mechanics (SuperMicro chassis and motherboards). Up until now, all of the hardware has had a single 24-disk expander / backplane -- but we recently got one of the new SC847-based models with 24 disks up front and 12 in the

According to various posts the LSI SAS3081E-R seems to work well with OpenSolaris. But I''ve got pretty chilled-out from my recent problems with Areca-1680''s. Could anyone please confirm that the LSI SAS3081E-R works well ? Is hotplug supported ? Anything else I should know before buying one of these cards ? Thanks, Arnaud

Anyone have any experience with a R510 with the PERC H200/H700 controller with ZFS? My perception is that Dell doesn''t play well with OpenSolaris. Thanks, Geoff

zdb -C shows an shift value on each vdev in my pool, I was just wondering if it is vdev specific, or pool wide. Google didn''t seem to know. I''m considering a mixed pool with some "advanced format" (4KB sector) drives, and some normal 512B sector drives, and was wondering if the ashift can be set per vdev, or only per pool. Theoretically, this would save me some size on

I have some questions about the choice of SSDs to use for ZIL and L2ARC. I''m trying to build an OpenSolaris iSCSI SAN out of a whitebox system, which is intended to be used as a backup SAN during storage migration, so it''s built on a tight budget. The system currently has 4GB RAM, 3GHz Core2-Quad and 8x 500GB WD REII SATA HDDs attached to an Areca 8port ARC-1220 controller