Hi,
Plant, Dean wrote:
Simple fix,
Adaptec & CentOS = :-( LSI & CentOS = :-)
Which is why after a few hours of testing I decided to indeed buy a couple of LSI cards to test with -- far better than a lot of frustration.
But, meanwhile, I decided to test one more thing: just suppose that the SCSI auto-negotiation, which worked fine before, had suddenly given up in version 3.0 of the aic79xx driver?
I forced the transfer rate in the Adaptec BIOS for those IDs to the maximum that my Infortrend could support (U160) and for good measure disabled "Disconnect" as well. Then, rebooted into 2.6.18-8.1.6&8, and it worked: User==Goal==Curr==160.0 MB/s. Apparently, the latest aic79xx driver V3.0 does no longer support auto-negotiation, whereas all drivers <=1.3.11 did negotiate correctly.
Michael, maybe that works for you as well (unless your tapedrive actually does do U320)?
DavidG.
Anyway, the LSI cards will finally give me >2TByte devices, so it's good having those anyway.
We spent a few days trying to get Adaptec cards working with LTO-3 drives. It was suggested to me from this list to try an LSI, we bought one, it worked, problem solved.
Dean
David Groep wrote:
[sorry for breaking the threading, only joined after reading this on the web]
Michael St. Laurent wrote:
I'm having speed problems with the SCSI card we're using to do tape backup. It seems to be functioning in 16 bit mode and the current thinking is that perhaps it's using a legacy driver instead of the correct one. The Adaptec site has a 'driver' for RHEL5 which I've downloaded and tried to install but it seems to have a problem installing on a CentOS-5 system.
Hit this same issue with a slightly different configuration, and although not able to offer a solution, I can at least give some more boundary conditions. As I see it now, it starts to look like a driver issue.
I found the issue with a 39320 controller on CentOS5/i386, talking to an Infortrend IFT-7250F enclosure. It should be doing U160 (Wide, 80 MHz synchonous), but it decays to 3.300 MB/s transfers. The driver indeed even says the "Goal" is 3.300 MB/s ...
It is confirmed by the infortrend: it shows asynchonous/narrow as transfer settings for the SCSI channels after loading the aic79xx
driver.
Exchanging the 39320 for a 29320, still on the same machine with CentOS5/i386, does not change it: still 3.300 MB/s (as confirmed by the infortrend itself)
putting this same 29320, with the same IFT7250F and with the same cabling, in another machine running CentOS3.7: presto, it synchonizes again at 160 MB/s (Wide, 80 MHz)!
similar Adaptec 29320 and 39320's in a CentOS4/i386 box, connected to similar Infortrends: work correctly at 160 and 320 MB/s
Booting into kernel 2.6.18-8.el5 or 2.6.18-8.1.8.el5 makes no
difference
For CentOS5, the aic79xx driver is "Version: 3.0". For CentOS3 it's using driver "1.3.10-RH1", and for the CentOS4 systems, it's "1.3.11". What changed between 1.3.11 and 3.0?
At least you're not alone ...
Regards, DavidG.
PS: and indeed, the adaptec driver RPM does not install correctly, with the same errors you reported below.
[root <at> hcnas modules]# cd /proc/scsi [root <at> hcnas scsi]# cat scsi Attached devices: Host: scsi0 Channel: 00 Id: 08 Lun: 00 Vendor: DP Model: BACKPLANE Rev: 1.05 Type: Enclosure ANSI SCSI revision: 05 Host: scsi0 Channel: 02 Id: 00 Lun: 00 Vendor: DELL Model: PERC 5/i Rev: 1.03 Type: Direct-Access ANSI SCSI revision: 05 Host: scsi1 Channel: 00 Id: 06 Lun: 00 Vendor: CERTANCE Model: ULTRIUM 2 Rev: 1914 Type: Sequential-Access ANSI SCSI revision: 03 Host: scsi1 Channel: 00 Id: 06 Lun: 01 Vendor: DELL Model: PV-124T Rev: 0043 Type: Medium Changer ANSI SCSI revision: 02 Host: scsi3 Channel: 00 Id: 00 Lun: 00 Vendor: Dell Model: Virtual CDROM Rev: 123 Type: CD-ROM ANSI SCSI revision: 02 Host: scsi4 Channel: 00 Id: 00 Lun: 00 Vendor: Dell Model: Virtual Floppy Rev: 123 Type: Direct-Access ANSI SCSI revision: 02 [root <at> hcnas scsi]# ll total 0 dr-xr-xr-x 2 root root 0 Aug 3 13:21 aic79xx -r--r--r-- 1 root root 0 Aug 3 13:21 device_info -r--r--r-- 1 root root 0 Aug 3 13:21 scsi dr-xr-xr-x 2 root root 0 Aug 3 13:21 sg dr-xr-xr-x 2 root root 0 Aug 3 13:21 usb-storage [root <at> hcnas scsi]# cd aic79xx/ [root <at> hcnas aic79xx]# ll total 0 -rw-r--r-- 1 root root 0 Aug 3 13:09 1 -rw-r--r-- 1 root root 0 Aug 3 13:09 2 [root <at> hcnas aic79xx]# cat 1 Adaptec AIC79xx driver version: 3.0 Adaptec 39320A Ultra320 SCSI adapter aic7902: Ultra320 Wide Channel A, SCSI Id=7, PCI-X 101-133Mhz, 512 SCBs Allocated SCBs: 4, SG List Length: 128
Serial EEPROM: 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x17c8 0x09f4 0x0142 0x2807 0x0010 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x0430 0xb3f3
Target 0 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 1 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 2 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 3 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 4 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 5 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 6 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Goal: 3.300MB/s transfers Curr: 3.300MB/s transfers Channel A Target 6 Lun 0 Settings Commands Queued 29 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Channel A Target 6 Lun 1 Settings Commands Queued 20 Commands Active 0 Command Openings 1 Max Tagged Openings 0 Device Queue Frozen Count 0 Target 7 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 8 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 9 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 10 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 11 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 12 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 13 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 14 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) Target 15 Negotiation Settings User: 320.000MB/s transfers (160.000MHz RDSTRM|DT|IU|RTI|QAS, 16bit) [root <at> hcnas ~]# rpm -e a320raid-3.00.063.5.V580A1-1 [root <at> hcnas ~]# rpm -ivh a320raid.rhel5.i686.rpm Preparing... ########################################### [100%] 1:a320raid ########################################### [100%]
Adaptec adp94xx driver installer - V1.2.5934.0-1
Backing up all modified files to /boot/adp94xx-backup-3
Using GRUB configuration If this is not what you want, rename your /boot/grub/grub.conf file /boot -rw------- 1 root root 2403411 Jul 27 14:47 initrd-2.6.18-8.1.8.el5.img
/boot/vmlinuz-2.6.18-8.1.8.el5 /boot/initrd-2.6.18-8.1.8.el5.img CentOS (2.6.18-8.1.8.el5) Configuration [CentOS (2.6.18-8.1.8.el5)] /boot/vmlinuz-2.6.18-8.1.8.el5 -> 2.6.18-8.1.8.el5
****** PROBLEM ******* No prebuilt module for 2.6.18-8.1.8.el5 i686
/boot -rw------- 1 root root 2403318 Jul 27 07:39 initrd-2.6.18-8.el5.img
/boot/vmlinuz-2.6.18-8.el5 /boot/initrd-2.6.18-8.el5.img CentOS (2.6.18-8.el5) Configuration [CentOS (2.6.18-8.el5)] /boot/vmlinuz-2.6.18-8.el5 -> 2.6.18-8.el5
****** PROBLEM ******* No prebuilt module for 2.6.18-8.el5 i686
******** NO MODULES INSTALLED *********
Done. error: %post(a320raid-3.00.063.5.V580A1-1.i686) scriptlet failed, exit status 1 [root <at> hcnas ~]#
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