Ooops ... Thanks for the tip, I wasn't aware of narrow bus - U320 drives issue
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Quiet SCSI harddrives - Page 2
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Looks like it will work if you get the 68-pin model and a 68->50 pin converter, though.
I haven't the foggiest why Fujitsu decided to not support 8-bit across the board on this drive, since they put it in one of the models.
I haven't the foggiest why Fujitsu decided to not support 8-bit across the board on this drive, since they put it in one of the models.
Damn the torpedoes, full speed ahead!
There are those who say I'm a bit of a curmudgeon. To them I reply: "GET OFF MY LAWN!"
(single-CM)
There are those who say I'm a bit of a curmudgeon. To them I reply: "GET OFF MY LAWN!"
(single-CM)
Found this old thread via the wiki, thought I'd add an update...
I've tested a lot of SCSI disks, including the Seagate mentioned earlier. So far the quietest
disk I've come across, ideal for O2, is the Fujitsu MAS3367NC. Helps to replace the PSU fan
aswell though, which I do using an Arctic F8 (temp control cable removed); end result is a
near silent O2.
Best of all of course is an SSD. Today I sorted out an R10K/250 O2 running IRIX 6.3 with a
Crucial M550 128GB in an ARS-2160H SCSI/SATA bridge box, an upgrade for an industrial
customer over their original R5K/180 which had a typical 9GB 7200rpm IBM DNES-309170.
Their work (textiles) involves lots of small files, typically 1K to 4K, a perfect fit for an SSD.
I tested how quickly the system could search their main archive, simply by using a find
command with a file name that doesn't exist, forcing the search to scan the whole archive.
Here are the results obtained via timex in seconds (the 36GB 15K referred to here is indeed
a MAS3367NC, which also happens to be the 2nd-fastest SCSI disk I've tested for access
time, the MAX3036NC being just fractionally better):
ie. the combination of the CPU and SSD upgrade means the new setup is almost ten times
faster for file access response, though even the change to a 36GB 15K gives a 3X speedup.
Hope this helps!
Ian.
PS. For those who may be wondering, I used the Crucial M550 because it's the only decent
consumer SSD which has proper capacitor-based power loss protection. Even the latest
Samsung 850 Pro doesn't have PLP of this kind. Apart from this though, pretty much any
SSD will work ok.
PPS. The best and highest capacity SCSI disk for Indigo2 is either the Seagate ST3300007LC or
ST3300655LC (10K and 15K respectively). Both support narrow/SE and are low-noise. I've fitted
them into IRIS Indigo systems in the past. Or of course, just use an SSD; I've tested with
a Samsung 840 Pro 512GB, works ok.
I've tested a lot of SCSI disks, including the Seagate mentioned earlier. So far the quietest
disk I've come across, ideal for O2, is the Fujitsu MAS3367NC. Helps to replace the PSU fan
aswell though, which I do using an Arctic F8 (temp control cable removed); end result is a
near silent O2.
Best of all of course is an SSD. Today I sorted out an R10K/250 O2 running IRIX 6.3 with a
Crucial M550 128GB in an ARS-2160H SCSI/SATA bridge box, an upgrade for an industrial
customer over their original R5K/180 which had a typical 9GB 7200rpm IBM DNES-309170.
Their work (textiles) involves lots of small files, typically 1K to 4K, a perfect fit for an SSD.
I tested how quickly the system could search their main archive, simply by using a find
command with a file name that doesn't exist, forcing the search to scan the whole archive.
Here are the results obtained via timex in seconds (the 36GB 15K referred to here is indeed
a MAS3367NC, which also happens to be the 2nd-fastest SCSI disk I've tested for access
time, the MAX3036NC being just fractionally better):
Code: Select all
R10K/250, 128GB SSD: 14.67
R10K/250, 36GB 15K: 36.08
R5K/180, 36GB 15K: 50.42
R5K/180, 9GB 7200rpm: 134.22
ie. the combination of the CPU and SSD upgrade means the new setup is almost ten times
faster for file access response, though even the change to a 36GB 15K gives a 3X speedup.
Hope this helps!
Ian.
PS. For those who may be wondering, I used the Crucial M550 because it's the only decent
consumer SSD which has proper capacitor-based power loss protection. Even the latest
Samsung 850 Pro doesn't have PLP of this kind. Apart from this though, pretty much any
SSD will work ok.
PPS. The best and highest capacity SCSI disk for Indigo2 is either the Seagate ST3300007LC or
ST3300655LC (10K and 15K respectively). Both support narrow/SE and are low-noise. I've fitted
them into IRIS Indigo systems in the past. Or of course, just use an SSD; I've tested with
a Samsung 840 Pro 512GB, works ok.
(07/Mar/2015) FREE! (collection only) 16x Sagitta 12-bay dual-channel U160 SCSI JBOD units.
Email, phone or PM for details, or see my forum post .
[email protected]
+44 (0)131 476 0796
Email, phone or PM for details, or see my forum post .
[email protected]
+44 (0)131 476 0796