On Thu, 2007-01-11 at 10:35 -0800, Richard Elling wrote: > The product was called Sun PrestoServ. It was successful for benchmarking > and such, but unsuccessful in the market because: > > + when there is a failure, your data is spread across multiple > fault domains > > + it is not clusterable, which is often a requirement for data > centers > > + it used a battery, so you had to deal with physical battery > replacement and all of the associated battery problems > > + it had yet another device driver, so integration was a pain > > Google for it and you'll see all sorts of historical perspective. > -- richard
Yes, I remember (and used) PrestoServ. Back in the SPARCcenter 1000 days. :-) And yes, local caching makes the system non-clusterable. However, all the other issues are common to a typical HW raid controller, and many people use host-based HW controllers just fine and don't find their problems to be excessive. And, honestly, I wouldn't think another driver would be needed. Attaching a SSD or similar usually uses an existing driver (it normally appears as a SCSI or FC drive to the OS). -- Erik Trimble Java System Support Mailstop: usca14-102 Phone: x17195 Santa Clara, CA Timezone: US/Pacific (GMT-0800) _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
