file systems don't have sectors, they have blocks. and zfs normally uses 512b-128k blocks, which is fine. this issue won't be fixed by reducing the recordsize in zfs, it's a hardware/driver thing
----- Original Message ----- > I think Rich was suggesting using 4k sectors on the file system, not > asking > what the drives sector size was. > > On Mon, Aug 29, 2011 at 2:15 PM, Roy Sigurd Karlsbakk > <r...@karlsbakk.net>wrote: > > > All drives have 512b sector sizes, WD FASS (blacks) and WD EADS > > (greens) > > both use plain old 512 sectors..... > > > > ----- Original Message ----- > > > The drives are attached to a backplane? > > > > > > Try using 4k sector sizes and see if that improves it - I've seen > > > and > > > been part of a number of discussions which involved this - and > > > you, I > > > think, actually. > > > > > > - Rich > > > > > > On Mon, Aug 29, 2011 at 5:07 PM, Roy Sigurd Karlsbakk > > > <r...@karlsbakk.net> wrote: > > > > Hi all > > > > > > > > It seems recent WD drives that aren't "Raid edition" can cause > > > > rather a lot of problems on RAID systems. We have a few machines > > > > with LSI controllers (6801/6081/9201) and we're seeing massive > > > > errors occuring. The usual pattern is a drive failing or even a > > > > resilver/scrub starting and then, suddenly, most drives on the > > > > whole > > > > backplane report errors. These are usually No Device (as > > > > reported by > > > > iostat -En), but the result is that we may see data corruption > > > > at > > > > the end. We also have a system setup with Hitachi Deskstars, > > > > which > > > > has been running for almost a year without issues. One system > > > > with a > > > > mixture of WD Blacks and greens showed the same errors as > > > > described, > > > > but has been working well after the WD drives were replaced by > > > > deskstars. > > > > > > > > Now, it seems WD has changed their firmware to inhibit people > > > > from > > > > using them for other things than toys (read: PCs etc). Since > > > > we've > > > > seen this issue on different controllers and different drives, > > > > and > > > > can't reproduce it with Hitachi Deskstars, I would guess the > > > > firmware "upgrade" from WD is the issue. > > > > > > > > Would it be possible to fix this in ZFS somehow? The drives seem > > > > to > > > > work well except for those "No Device" errors.... > > > > > > > > Vennlige hilsener / Best regards > > > > > > > > roy > > > > -- > > > > Roy Sigurd Karlsbakk > > > > (+47) 97542685 > > > > r...@karlsbakk.net > > > > http://blogg.karlsbakk.net/ > > > > -- > > > > I all pedagogikk er det essensielt at pensum presenteres > > > > intelligibelt. Det er et elementært imperativ for alle pedagoger > > > > å > > > > unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I > > > > de > > > > fleste tilfeller eksisterer adekvate og relevante synonymer på > > > > norsk. > > > > > > > > _______________________________________________ > > > > OpenIndiana-discuss mailing list > > > > OpenIndiana-discuss@openindiana.org > > > > http://openindiana.org/mailman/listinfo/openindiana-discuss > > > > > > > > > > _______________________________________________ > > > OpenIndiana-discuss mailing list > > > OpenIndiana-discuss@openindiana.org > > > http://openindiana.org/mailman/listinfo/openindiana-discuss > > > > -- > > Vennlige hilsener / Best regards > > > > roy > > -- > > Roy Sigurd Karlsbakk > > (+47) 97542685 > > r...@karlsbakk.net > > http://blogg.karlsbakk.net/ > > -- > > I all pedagogikk er det essensielt at pensum presenteres > > intelligibelt. Det > > er et elementært imperativ for alle pedagoger å unngå eksessiv > > anvendelse av > > idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer > > adekvate > > og relevante synonymer på norsk. > > > > _______________________________________________ > > OpenIndiana-discuss mailing list > > OpenIndiana-discuss@openindiana.org > > http://openindiana.org/mailman/listinfo/openindiana-discuss > > > > > > -- > "I hope some animal never bores a hole in my head and lays its eggs in > my > brain, because later you might think you're having a good idea but > it's just > eggs hatching" - Jack Handy > _______________________________________________ > OpenIndiana-discuss mailing list > OpenIndiana-discuss@openindiana.org > http://openindiana.org/mailman/listinfo/openindiana-discuss -- Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 r...@karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et elementært imperativ for alle pedagoger å unngå eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer på norsk. _______________________________________________ OpenIndiana-discuss mailing list OpenIndiana-discuss@openindiana.org http://openindiana.org/mailman/listinfo/openindiana-discuss
