I've been running one RAID5 set several months with no problems.
The new disk I added is a Wide SCSI on an ASUS motherboard that has both
narrow/wide busses (shared bus).
The 3-disk set is composed of 2 narrow SCSI and the one wide SCSI
disk...here's my current SCSI (new RAID is the seagates device#1,2 and 8).
I was using the two narrow SCSI devices before with no problem and I had the
Wide SCSI installed but not running for the last few months. I also
installed 3 IDE disks so I can eventually make the root filesystem RAID5
too. So, the only real change is the Wide SCSI is now being used a lot more
and the installation of the 3 IDE disks.
So, question is:
Does the tagged queing I've enabled cause any problems?
Can I have multiple RAID5's without any problem?
Can I mix Narrow and Wide SCSI without any problem?
Can I mix IDE and SCSI without any problem?
And, can I do all of these things at once without any problem?
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: HP Model: C3725S Rev: 5153
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 01 Lun: 00
Vendor: SEAGATE Model: ST19171N Rev: 0019
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 02 Lun: 00
Vendor: SEAGATE Model: ST19171N Rev: 0024
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 03 Lun: 00
Vendor: MICROP Model: 4421-07 0329SJ Rev: 0329
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 04 Lun: 00
Vendor: MICROP Model: 4421-07 0329SJ Rev: 0329
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 05 Lun: 00
Vendor: MICROP Model: 4421-07 0329SJ Rev: 0329
Type: Direct-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: ARCHIVE Model: Python 25501-XXX Rev: 5.45
Type: Sequential-Access ANSI SCSI revision: 02
Host: scsi0 Channel: 00 Id: 08 Lun: 00
Vendor: SEAGATE Model: ST19171W Rev: 0024
Type: Direct-Access ANSI SCSI revision: 02
The SCSI card looks like:
Adaptec AIC7xxx driver version: 5.0.20/3.2.4
Compile Options:
AIC7XXX_RESET_DELAY : 15
AIC7XXX_TAGGED_QUEUEING: Adapter Support Enabled
Check below to see which
devices use tagged queueing
AIC7XXX_PAGE_ENABLE : Enabled (This is no longer an option)
AIC7XXX_PROC_STATS : Enabled
Adapter Configuration:
SCSI Adapter: Adaptec AIC-7880 Ultra SCSI host adapter
Ultra Wide Controller
PCI MMAPed I/O Base: 0xeeffe000
Adaptec SCSI BIOS: Enabled
IRQ: 9
SCBs: Active 1, Max Active 1,
Allocated 60, HW 16, Page 255
Interrupts: 42386
BIOS Control Word: 0x1836
Adapter Control Word: 0x0072
Extended Translation: Disabled
Disconnect Enable Flags: 0xffff
Ultra Enable Flags: 0xffc6
Tag Queue Enable Flags: 0x013f
Ordered Queue Tag Flags: 0x013f
Default Tag Queue Depth: 8
Tagged Queue By Device array for aic7xxx host instance 0:
{0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}
Actual queue depth per device for aic7xxx host instance 0:
{8,8,8,8,8,8,1,1,8,1,1,1,1,1,1,1}
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