> Might this be the SATA drives taking too long to reallocate bad > sectors? This is a common problem "desktop" drives have, they will > stop and basically focus on reallocating the bad sector as long as it > takes, which causes the raid setup to time out the operation and flag > the drive as failed. The "enterprise" sata drives, typically the same > as the high performing desktop drive, only they have a short timeout > on how long they are allowed to try and reallocate a bad sector so > they don't hit the failed drive timeout. Some drive firmwares, such as > older WD blacks if memory serves, had the ability to be forced to > behave like the enterprise drive, but WD updated the firmware so this > is longer possible. > > This is why you see SATA drives that typically have almost identical > specs, but one will be $69 and the other $139 - the former is a > "desktop" model while the latter is an "enterprise" or "raid" specific > model. I believe it's called different things by different brands: > TLER, ERC, and CCTL (?).
I doubt this is about the lack of TLER et al. Some, or most, of the drives ditched by ZFS have shown to be quite good indeed. I guess this is a WD vs Intel SAS expanders issue 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. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
