> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss- > boun...@opensolaris.org] On Behalf Of Gordon Ross > > Anyone have experience with either one? (good or bad) > > Opinions whether the lower capacity and higher cost of > the SSD is justified in terms of performance for things > like software builds, etc?
The hybrid has basically 4G NV cache. The rest is regular hard drive. It will work well if you care about accelerating your boot time and you reboot regularly. But if you don't reboot regularly, and you actually have enough ram in your system that you don't constantly fetch the same sectors over and over... Well the drive can only memorize what it's told to memorize. So it will only memorize things that your OS actually fetches over and over... Which isn't very likely to happen except by repeat reboots. Depends on your behavior patterns. They don't say anything about their algorithms, of course. So it's totally unclear if they use some of the SSD to buffer writes... The hybrid might only benefit reads under the right conditions, and it might not benefit writes at all... Don't really know. My opinion: I'm skeptical about the success of the hybrid drive accelerating performance. I'd like to be proven wrong. Do you have $0.98 change for a $1 bill? _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
