On 31.05.2010 04:02, Javen Wu wrote: > Hi Svein, > > Could you please describe the problem or point us where we can find more > synopsis description on the problem?
Short version: Use an LSI 1068E C-revision based controller (3801E) SAS-MPT to run an HP Autoloader 1/8 G2 LTO3 tape autoloader. Disks are connected via a different controller (LSI Megaraid SAS 8308ELP, SAS-MFI not MPT). In OpenSolaris (And FreeBSD, and atleast Suse Linux which was what I did a stab at in the Linux world), the controller seize up, ending in a bus+device reset at seemingly random times (in FreeBSD I managed to isolate it down to when queue builds up, I can't say for certain it's the same that happens in OpenSolaris, but the behavior is identical), giving random (and I mean random) read/write errors for the tape drive. "Strangely" enough the Windows driver is unaffected, and no amount of debugging can reveal any sort of problem (and the tapeloader + tapedrive is running daily incrementals and weekly fullbackups of my data, so it has "some mileage" in that respect). The fact that it's related to "a queue building up" means (to me) it's probably related to the various reports of disks on MPT going "dead" during scrubs or other high-activity. I'm writing this over a cellphone-line + vpn back home, so I'm not going to start up a lot of graphic webbrowsing to seach the bugreports today (or tomorrow), so I can't give you a cr-number right now. //Svein -- --------+-------------------+------------------------------- /"\ |Svein Skogen | [email protected] \ / |Solberg Østli 9 | PGP Key: 0xE5E76831 X |2020 Skedsmokorset | [email protected] / \ |Norway | PGP Key: 0xCE96CE13 | | [email protected] ascii | | PGP Key: 0x58CD33B6 ribbon |System Admin | [email protected] Campaign|stillbilde.net | PGP Key: 0x22D494A4 +-------------------+------------------------------- |msn messenger: | Mobile Phone: +47 907 03 575 |[email protected] | RIPE handle: SS16503-RIPE --------+-------------------+------------------------------- If you really are in a hurry, mail me at [email protected] This mailbox goes directly to my cellphone and is checked even when I'm not in front of my computer. ------------------------------------------------------------ Picture Gallery: https://gallery.stillbilde.net/v/svein/ ------------------------------------------------------------
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