[mythtv-users] NAS RAID 5 for MythTv
Jarod Wilson
lists at wilsonet.com
Fri Feb 9 17:04:40 UTC 2007
Steven Adeff wrote:
> On 2/8/07, Robert Kulagowski <bob at smalltime.com> wrote:
>>> I would recommend taking a very good look at the 9550 though - the specs
>>> are significantly better than the 9500, not sure how price compares
>>> though.
>> That may be true, but for the price (I also paid about $300 a year ago
>> on e-bay), the performance is more than what I need.
>
> anyone know anything about the 3ware Escalade 8506-8 cards?
3ware in general is just plain Good Stuff, in my experience. I've got a
9500s-8 myself, hooked to 8 250G SATA drives. More than enough
performance, and like Bob, got it off eBay (for $230, iirc).
The 8000-series lacks some of the management features of the
9000-series, and may be slightly slower, but it'd sill be a perfectly
good card for a MythTV storage array. Here's some help output from
3ware's cli utils that may be enlightening:
//apollo> /c0 help
/cx show
/cx show Attribute [Attribute ...] where Attribute is:
achip|allunitstatus|autocarve(9000 series)|autorebuild(9550SX only)
bios|carvesize(9000 series)|driver|drivestatus|exportjbod
firmware|memory|model|monitor|numdrives|numports|numunits
ctlbus(9550SX only)|ondegrade(9000S only)|pcb|pchip|serial
spinup|stagger|unitstatus
/cx show all where all means Attributes and configurations.
/cx show diag
/cx show alarms [reverse]
/cx show rebuild (9000 series)
/cx show verify (9000 series)
/cx show selftest (9000 series)
/cx add type=<RaidType> disk=<p:-p..> [stripe=<Stripe>] [noscan]
[nocache] [group=<3|4|5|6|7|8>] [autoverify] [ignoreECC]
[name=string (9000 series)] [storsave=<protect|balance|perform>
(9550SX only)] RaidType = { raid0, raid1, raid5, raid10, raid50,
single, spare, JBOD (7000/8000 only)}
/cx add rebuild=ddd:hh:duration (9000 series)
/cx add verify=ddd:hh:duration (9000 series)
/cx add selftest=ddd:hh (9000 series)
/cx del rebuild=slot_id (9000 series)
/cx del verify=slot_id (9000 series)
/cx del selftest=slot_id (9000 series)
/cx set exportjbod=on|off (9000 series)
/cx set ondegrade=cacheoff|follow (9000S only)
/cx set spinup=nn (9000 series)
/cx set stagger=nn (9000 series)
/cx set autocarve=on|off (9000 series)
/cx set carvesize=[1024..2048] (9000 series)
/cx set rebuild=enable|disable|<1..5> (enable|disable for 9000 series)
/cx set verify=enable|disable|<1..5> (enable|disable for 9000 series)
/cx set selftest=enable|disable [task=UDMA|SMART] (9000 series)
/cx set autorebuild=on|off (9550SX only)
/cx flush
/cx commit (Windows only) (Also known as shutdown)
/cx start mediascan (7000/8000 only)
/cx stop mediascan (7000/8000 only)
/cx rescan [noscan] NOTE: Does not import non-JBOD on 7000/8000 models.
--
Jarod Wilson
jarod at wilsonet.com
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