On 04/10/11 3:09 AM, Christopher Chan wrote:
> OH, is that how those babies work? The backplane is not using a
> controller chip that mutiplexes the stuff? Oops, sorry.
The backplane typically has a SAF-TE
(SCSI Accessed Fault-Tolerant Enclosure) chip which provides backplane
management service
On Sunday, April 10, 2011 04:30 AM, John R Pierce wrote:
> On 04/09/11 8:11 AM, Christopher Chan wrote:
>> On Saturday, April 09, 2011 10:47 PM, Drew wrote:
The key is the backplane, not the drives. You should be able to get u320
speeds if you have enough u160 drives.
>>> Does five drives
> I guess that depends on whether they can flood an u320 bus. If they are
> 10k/15k rpm drives, I'd think so...
10k rpm drives. I can also get my hands on some retired IBM U320's if
I want to pull them from our shop's boneyard.
> No experience with that particular unit but Supermicro has a good n
On 04/09/11 8:11 AM, Christopher Chan wrote:
> On Saturday, April 09, 2011 10:47 PM, Drew wrote:
>>> The key is the backplane, not the drives. You should be able to get u320
>>> speeds if you have enough u160 drives.
>> Does five drives count?
> I guess that depends on whether they can flood an u32
On 04/09/11 7:08 AM, Christopher Chan wrote:
>> In that case there's no real point upgrading. :-) The drives are U160's.
> The key is the backplane, not the drives. You should be able to get u320
> speeds if you have enough u160 drives
SCSI (parallel) before U320 had a weak spot. the command and
On Saturday, April 09, 2011 10:47 PM, Drew wrote:
>> The key is the backplane, not the drives. You should be able to get u320
>> speeds if you have enough u160 drives.
>
> Does five drives count?
I guess that depends on whether they can flood an u320 bus. If they are
10k/15k rpm drives, I'd think
> The key is the backplane, not the drives. You should be able to get u320
> speeds if you have enough u160 drives.
Does five drives count?
>> I was just hoping a slightly newer card might be available that'd give
>> me a speed boost for cheap. :-)
>
> Again, like John posted, it depends on wheth
On Saturday, April 09, 2011 09:14 PM, Drew wrote:
>> cheap scsi raid? good luck. maybe something on ebay, but then its
>> Caveat Emptor, and likely the raid batteries will be dead or dying.
>>
>> What speed is your scsi backplane? you can't get Ultra/320 speeds
>> across older backplanes that w
I don't know where you are but I have a surplus ICP vortex proper Raid
card with 1GB
of cache - PCI-X. It was nearly £1k when we bought it and it ran our
main server for years.
You're probably looking for a new one but someone can have this for
beer money if it's
of any use. I'm only going to have
> cheap scsi raid? good luck. maybe something on ebay, but then its
> Caveat Emptor, and likely the raid batteries will be dead or dying.
>
> What speed is your scsi backplane? you can't get Ultra/320 speeds
> across older backplanes that were designed for U80 or U160 speeds. in
> fact, I've h
On 04/08/11 5:12 PM, Drew wrote:
> Afternoon,
>
> I've got an old Dell PERC 4DC (PCI 64bit/33MHz) sitting in my home rig
> and with a new board on the way that has PCI-X (133) and PCIe (x4)
> slots, I was wondering what people would recommend for a cheap
> hardware parallel SCSI RAID controller (no
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