February 24, 200818 yr Hey All, On 1st unraid server (celerond and p5pe-vm 1GB DDR2) when I parity sync or parity check or like now I am re-building data and the speeds when I look at the server in the managment window start at aroung 13.5Kb/s. In the new machine (C2D 4500-800 on the Intel DQ35JO board 1GB-800 DDR2) (Turn ACPI=off) to work I just installed (1) 500Gb drive as parity and started Parity sync and I am seeing 70Kb/s. what gives! Is this normal? In the old machine there are 9 drives plus parity, 2 drives are on the onboard sata and 8 are on the 2 x SATA300 TX4 promise cards (pci) all the drives are in direct connection King-Win trays except for one which uses a sata connection internally to a centronics 50 connector or the like. I did not count the pins basically it looks like a modified SCSI encosure. Regards, DVS
February 24, 200818 yr I believe you meant MB/s, not Kb/s. I've noticed that starting speed is usually slow, but gradually increases and maxes somewhere after 2 and 5 gigs of the process, and then slowly tapers down after that. I don't think you listed how many drives you have in the new machine. If it really is only the one 500GB, then that is probably a good speed, since all it is doing is clearing the parity drive. On the old machine, the PCI bus becomes a major bottleneck when doing simultaneous reads and writes, especially during a parity sync or data drive rebuild. When my machine was around 6 SATA II drives, I would get up to as high as 68MB/s, taper down to about 50MB/s at the end.
February 24, 200818 yr Author Hey Rob, Both my systems are reporting KB/s here is a screen shot in pdf.
February 24, 200818 yr DVS, how come you are running version 4.2.2 of unRAID (according to your attached pdf-file)? I thought the latest release was v4.2.1 Regards, Søren
February 24, 200818 yr Author Hello Soren, I was running 4.0 and then I tried a swap-disable this last week which did not go well. There was a bug and Unraid would not let me perform the task as required. Tom did a fix for me and sent me the latest 4.2.1 file with the fix installed and called it 4.2.2 He did not post it on the site as 4.3 is around the corner and the fix will be included in that version. If you want the swap-disable fix now then e-mail Tom and ask him for it, he suggested this in another post. My version is the same as yours with as I said the sawp-disable fix. Regards, DVS
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