The default SCSI timeout is 30 seconds for a logical device. The aacraid based controllers currently have a 35 second timeout for the array. We are bumping up the default SCSI timeout for array devices, which typically manage many physical disks, to 45 seconds to provide a small margin to permit the controller to do what it is designed for. We have not observed any bad side-effects either way because no significant actions are taken by the aacraid timeout handler except to take advantage of the quiesced state to allow completion of all outstanding commands in the controller to provide a poor-mans guaranty of delivery. This is merely a preferential decision to reduce the number of timeout reports in the system logs to only the more serious conditions. This attached patch is against current scsi-misc-2.6. ObligatoryDisclaimer: Please accept my condolences regarding Outlook's handling of patch attachments. Signed-off-by: Mark Salyzyn <aacraid@xxxxxxxxxxx> drivers/scsi/aacraid/linit.c | 6 ++++++ 1 file changed, 6 insertions(+) Sincerely -- Mark Salyzyn
Attachment:
aacraid_array_timeout_too_short.patch
Description: aacraid_array_timeout_too_short.patch
