On 2012-Dec-11 15:43:21 -0500, Dieter BSD <[email protected]> wrote: >I care about data integrity, so things like ECC are on my must-have list.
Well, that's supported by all server CPUs (AMD Opteron, Intel Itanium, Intel Xeon, Oracle/Sun SPARC) and some desktop CPUs (most AMD x86 chips). >A high clock rate doesn't help when some device driver does > >block_all_interrupts(); >while(1) > DELAY(MIGHT_AS_WELL_BE_FOREVER); > >At least four device drivers have caused me to lose data this way. Which device drivers? We can't fix problems we don't know about. >Data integrity, and yes, reliability, that sort of thing. Virtually everything except some embedded and consumer-grade x86 systems manage that. >But without NCQ I'm only getting ~6% of what I should be getting. So, in one sentence you state that ECC is a "must have" and then you complain that that FreeBSD doesn't support NCQ on an old, low-end (consumer-grade) chipset that doesn't support ECC. >It's not some rare, obscure chip. Lots of boxes have it. None that support ECC, so you wouldn't be interested in any of them. >>> I never found a way to boot from different partitions, much less >>> different disks with GPT. Yes, this is a limitation of FreeBSD's GPT loader. So far, no-one has written the code to support multiple boot partitions or disks. Note that most BIOS's allow you to select the boot disk - which is a workaround. -- Peter Jeremy
pgpgEyjjmIWvx.pgp
Description: PGP signature
