[zfs-discuss] Reliability WAS: LSI 3081 (1068) + expander + (bad) SATA disk?

2012-04-09 Thread Paul Kraus
On Sun, Apr 8, 2012 at 7:40 AM, Jim Klimov wrote: > 2012-04-08 6:06, Richard Elling wrote: >> >> You can't get past the age-old idiom: you get what you pay for. > > > True... but it can be somewhat countered with DrHouse-age idiom: > people lie, even if they don't mean to ;) I think both aspe

Re: [zfs-discuss] What's wrong with LSI 3081 (1068) + expander + (bad) SATA

2012-04-09 Thread Jeff Bacon
> Out of curiosity, are there any third-party hardware vendors > that make server/storage chassis (Supermicro et al) who make > SATA backplanes with the SAS interposers soldered on? There doesn't seem to be much out there, though I haven't looked. > Would that make sense, or be cheaper/more reli

[zfs-discuss] J4400 question (not directly ZFS)

2012-04-09 Thread Paul Kraus
Sorry for the off topic post, but I figure there is experience here. I have a total of ten J4400 chassis all loaded with SATA drives. Has anyone noticed a tendency for drives in specific slots to fail more often than others? I have seen more drive failures in slot 20 than any other. I am wonder

Re: [zfs-discuss] J4400 question (not directly ZFS)

2012-04-09 Thread Richard Elling
On Apr 9, 2012, at 7:10 AM, Paul Kraus wrote: >Sorry for the off topic post, but I figure there is experience > here. I have a total of ten J4400 chassis all loaded with SATA drives. > Has anyone noticed a tendency for drives in specific slots to fail > more often than others? I have seen more

Re: [zfs-discuss] Seagate Constellation vs. Hitachi Ultrastar

2012-04-09 Thread Marion Hakanson
richard.ell...@richardelling.com said: > We are starting to see a number of SAS HDDs that prefer logical-block to > round-robin. I see this with late model Seagate and Toshiba HDDs. > > There is another, similar issue with recognition of multipathing by the > scsi_vhci driver. Both of these are be

Re: [zfs-discuss] Seagate Constellation vs. Hitachi Ultrastar

2012-04-09 Thread Anh Quach
Are these issues something to watch out for on Solaris 11 as well? Thx in advanceā€¦ -Anh On Apr 9, 2012, at 12:43 PM, Marion Hakanson wrote: > richard.ell...@richardelling.com said: >> We are starting to see a number of SAS HDDs that prefer logical-block to >> round-robin. I see this with late