Hi all Reading the docs for the Hitachi drives, it seems CCTL (aka TLER) is settable for Deskstar drives. See page 97 in http://goo.gl/ER0WD Does anyone know if this is possible from OI/Solaris, or if this needs to be done on driver level? Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 97542685 roy at karlsbakk.net http://blogg.karlsbakk.net/ -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt. Det er et element?rt imperativ for alle pedagoger ? unng? eksessiv anvendelse av idiomer med fremmed opprinnelse. I de fleste tilfeller eksisterer adekvate og relevante synonymer p? norsk.
On Wed, Sep 7, 2011 at 2:20 AM, Roy Sigurd Karlsbakk <roy at karlsbakk.net> wrote:> Does anyone know if this is possible from OI/Solaris, or if this needs to be done on driver level?You should be able to do it via smartctl. The setting does not persist through power cycles, so you''ll want to add it to a startup script. -B -- Brandon High : bhigh at freaks.com
On Wed, Sep 07, 2011 at 11:20:06AM +0200, Roy Sigurd Karlsbakk wrote:> Hi all > > Reading the docs for the Hitachi drives, it seems CCTL (aka TLER) is settable for Deskstar drives. See page 97 in http://goo.gl/ER0WDLooks like another positive for these drives over the "competition". The same appears to be the case for the 5k3000''s as well (page 96 in that document). Note, however: These timers do not apply to streaming commands, or to queued commands when out-of-order data delivery is enabled. I presume the latter is the common case for NCQ reads? That would appear to limit the usefulness of this specific knob, even if it''s better than binding it to the model number as other vendors do. -- Dan. -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 194 bytes Desc: not available URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20110908/08ac998e/attachment.bin>
On Wed, Sep 7, 2011 at 7:40 PM, Daniel Carosone <dan at geek.com.au> wrote:> Looks like another positive for these drives over the "competition". > The same appears to be the case for the 5k3000''s as well (page 96 in > that document).Be careful with the smaller 5k3000 drives. The 1TB and 2TB drives are not manufactured on the same line as the Ultrastar and seem to have lower reliability. Only the 3TB 5k3000 shares specs with the Ultrastar 5k3000. -B -- Brandon High : bhigh at freaks.com