Octane PCI cage and Ultra SCSI PCI cards
#1
Octane PCI cage and Ultra SCSI PCI cards
Looking to connect 2 or Medea Video Raid RTS's that use the Ultra 160 VHD68 SE LVD connections.  I know I need to find a PCI cage first.

My question is what Ultra SCSI UW160 cards are compatible.. Adaptect? or do I have to stay with SGI or Qlogic. 

I dont want Differential as I went that road with the XIO Ultra scsi board and cannot get it to see any of my drives - even though port 1 is supposed to be auto sensing and works with SE.

Octane 2x400mhz R12000A Octane, MXE, 4gig Ram

1600SW O2 400mhz R12000 O2, 1gig Ram AV1 - 250gig Media' raid

Indy 180mhz R5000 Indy XZ 256mb ram

Intel i7-990x 3.46GHz Extreme 6 core / Quadro 5000 & 2 x Tesla C2075 / 24gig Ram

Belkin Omniview SE Pro 4 port KVM connecting all 4 systems displaying on one 27" BenQ Zowie monitor.
bjames
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10-01-2018, 03:48 PM
#2
RE: Octane PCI cage and Ultra SCSI PCI cards
I have a Medea Video Raid unit with VHD and mine is run from the default external SCSI connector and I have a cable that converts the two.

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uunix
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10-01-2018, 04:04 PM
#3
RE: Octane PCI cage and Ultra SCSI PCI cards
The external UW scsi is supposed to support 40mb/sec and the Medea Raid RTS is supposed to provide 160MB/sec so in order to get full speed (multiple streams of uncompressed SD video), I would need 4 SCSi ports striped across 4 raids.

What kind of video performance are you getting?

Octane 2x400mhz R12000A Octane, MXE, 4gig Ram

1600SW O2 400mhz R12000 O2, 1gig Ram AV1 - 250gig Media' raid

Indy 180mhz R5000 Indy XZ 256mb ram

Intel i7-990x 3.46GHz Extreme 6 core / Quadro 5000 & 2 x Tesla C2075 / 24gig Ram

Belkin Omniview SE Pro 4 port KVM connecting all 4 systems displaying on one 27" BenQ Zowie monitor.
bjames
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10-01-2018, 05:29 PM
#4
RE: Octane PCI cage and Ultra SCSI PCI cards
(10-01-2018, 05:29 PM)bjames Wrote:  The external UW scsi is supposed to support 40mb/sec and the Medea Raid RTS is supposed to provide 160MB/sec so in order to get full speed (multiple streams of uncompressed SD video), I would need 4 SCSi ports striped across 4 raids.

What kind of video performance are you getting?

Beware that the random I/O speed of the disks is a lot less than the streaming speed. So you want to avoid hitting the same disk with multiple streams. A single stream of uncompressed SD video is ~ 25MB/s I believe.

The QLogic QLA12160 is probably what you want, it provides 2 U160 LVD scsi ports. Note that the bottleneck is the XIO-PCI bridge in the PCI 'shoebox' which maxes out somewhere between 160 and 200MB/s. The shoebox is only 64bit/33MHz PCI, the QLogic card exists in a 64bit/33MHz and 64bit/66MHz version. You will only benefit from the latter with an O3K/Fuel/Tezro class system (it will still work in an Octane, of course).
jan-jaap
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10-02-2018, 08:57 AM
#5
RE: Octane PCI cage and Ultra SCSI PCI cards
(10-01-2018, 05:29 PM)bjames Wrote:  The external UW scsi is supposed to support 40mb/sec and the Medea Raid RTS is supposed to provide 160MB/sec so in order to get full speed (multiple streams of uncompressed SD video), I would need 4 SCSi ports striped across 4 raids.

What kind of video performance are you getting?

Actually yes, it's best not to go the same route as I have, I only use mine for files and not the stoneFS.

Hey Ho Pip And Dandy!!!!!

Onyx2 :O2K_d-1: Origin 200 :tezro: Octane2 O2 Indigo Indy :320:
uunix
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10-02-2018, 09:48 AM
#6
RE: Octane PCI cage and Ultra SCSI PCI cards
but how to create and handle raid-stripping on Irix?
niwe
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10-02-2018, 10:54 AM
#7
RE: Octane PCI cage and Ultra SCSI PCI cards
(10-02-2018, 10:54 AM)niwe Wrote:  but how to create and handle raid-stripping on Irix?

See: IRIX® Admin: Disks and Filesystems

There's XLV and XVM, XLV is older, XVM has more advanced capabilities. For a simple stripe you can use either and the result will be the same. You don't need a license to stripe disks (RAID 0), only to mirror (RAID 1). Other RAID levels are not supported.
jan-jaap
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10-02-2018, 11:05 AM
#8
RE: Octane PCI cage and Ultra SCSI PCI cards
(10-02-2018, 08:57 AM)jan-jaap Wrote:  The shoebox is only 64bit/33MHz PCI, the QLogic card exists in a 64bit/33MHz and 64bit/66MHz version. You will only benefit from the latter with an O3K/Fuel/Tezro class system (it will still work in an Octane, of course).

This is great information as I have seen both for sale but one being more expensive - now I know.  thanks

Octane 2x400mhz R12000A Octane, MXE, 4gig Ram

1600SW O2 400mhz R12000 O2, 1gig Ram AV1 - 250gig Media' raid

Indy 180mhz R5000 Indy XZ 256mb ram

Intel i7-990x 3.46GHz Extreme 6 core / Quadro 5000 & 2 x Tesla C2075 / 24gig Ram

Belkin Omniview SE Pro 4 port KVM connecting all 4 systems displaying on one 27" BenQ Zowie monitor.
bjames
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10-02-2018, 02:52 PM


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