Bug #1063
Dell 'VSF' ide device degrades performance to the point of absurdity
0%
Description
On a Dell PowerEdge 2850 system, I see a large number of errors like the following:
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: abort request, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: abort device, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: reset target, target=1 lun=0
May 24 09:56:47 xxxx scsi: [ID 107833 kern.warning] WARNING: /pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0 (ata2):
May 24 09:56:47 xxxx timeout: reset bus, target=1 lun=0
Whenever they occur, they seem to effectively halt all other I/O on the system, and happen with enough frequency that the system takes over 40 minutes to boot!
Looking at /etc/path_to_inst, I see:- grep '/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0' /etc/path_to_inst
"/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0" 2 "ata"
"/pci@0,0/pci8086,244e@1e/pci-ide@6/ide@0/sd@0,0" 1 "sd"
iostat -E shows sd1 as:
sd1 Soft Errors: 0 Hard Errors: 0 Transport Errors: 2
Vendor: DELL Product: VSF Revision: 0123 Serial No:
Size: 0.00GB <0 bytes>
Media Error: 0 Device Not Ready: 0 No Device: 0 Recoverable: 0
Illegal Request: 0 Predictive Failure Analysis: 0
I am unsure what sort of device this is, but it would be nice to get the system to just ignore it (at minimum), so the system is usable.
Updated by Jason King almost 10 years ago
Doing a bit more digging, the VSF is apparently the DRAC virtual device (cdrom/floppy). Disabling it in the DRAC setup works around the issue, but it would be good if it actually worked in Illumos.
Updated by Garrett D'Amore almost 10 years ago
- Priority changed from Normal to Low
The device is unlikely to be terribly useful, and furthermore if it doesn't behave like a real cdrom it will be difficult to fix. Furthermore, without sample hardware to work with, its unlikely that anyone who can work on it will.