Anton B. Rang wrote:
Actually, while Seagate's little white paper doesn't explicitly say so, the FLASH is used for a write cache and that provides one of the major benefits: Writes to the disk rarely need to spin up the motor. Probably 90+% of all writes to disk will fit into the cache in a typical laptop environment (no, compiling OpenSolaris isn't typical usage…).
On OpenSolaris laptops with enough RAM, we need to think about fitting mappings of libc, cron and all of its work into the buffer cache and then maybe the flash cache on the drive. Each time you execute a program, that's an atime uptdate of its file... I've known people to wear out laptop hard drives in a frighteningly short period of time because of the drive being spun up and down to service cron, sendmail queue runs, syslog messages... Darren _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
