[OmniOS-discuss] st driver issue with blocksize > 1MiB

Wed Dec 18 22:35:35 UTC 2013

Anyone have a clue?

On 18/12/13 16:10, Tom Robinson wrote:
> OmniOS v11 r151006
> st driver
> sgen driver
>
> Hi,
>
> I'm having issues with the st driver accepting writes to tape with a block size larger than 1MiB
> where it previously did write 2MiB blocks.
>
> Previously I had written to the tape using a blocksize of 2MiB (using amanda software command
> 'amtapetype'):
> $ amtapetype -f -b 2048k -t ULT3580-TD5 weekly /dev/rmt/0bn
> Checking for FSF_AFTER_FILEMARK requirement
> device-property "FSF_AFTER_FILEMARK" "false"
> Applying heuristic check for compression.
> Wrote random (uncompressible) data at 87839727.2131148 bytes/sec
> Wrote fixed (compressible) data at 282011755.789474 bytes/sec
> Compression: enabled
> Writing one file to fill the volume.
> Wrote 1519520841728 bytes at 86133 kb/sec
> Writing smaller files (15193866240 bytes) to determine filemark.
> define tapetype ULT3580-TD5 {
> comment "Created by amtapetype; compression enabled"
> length 1483907072 kbytes
> filemark 1820 kbytes
> speed 86133 kps
> blocksize 2048 kbytes
> }
> # LEOM is not supported for this drive and kernel
>
> I have since rebooted a few times but the tape unit always appeared to be available as mt and mtx
> worked apparently without error.
> # mt config
> "IBM ULT3580-TD5", "IBM ULT3580-TD5 ", "CFGIBMULT3580TD5";
> CFGIBMULT3580TD5 = 2,0x3B,0,0x1018619,4,0x46,0x46,0x58,0x58,3,60,1500,600,16920,780,780,16380;
> # mt status
> IBM ULT3580-TD5 tape drive:
> sense key(0x0)= No Additional Sense residual= 0 retries= 0
> file no= 0 block no= 0
>
> Now, I tried to determine the block size on the tape using dd and got this:
> dd if=/dev/rmt/0bn bs=1024K count=1 of=/dev/null
> 0+1 records in
> 0+1 records out
> 32768 bytes (33 kB) copied, 0.0103029 s, 3.2 MB/s
>
> That is, the block is 32KiB (told to read 1MiB, got 32KiB)
>
> But that tape was written with 2MiB blocks! I powered off, then on the tape unit and got this:
> dd if=/dev/rmt/0bn bs=1024K count=1 of=/dev/null
> 0+1 records in
> 0+1 records out
> 1047552 bytes (1.0 MB) copied, 0.0172134 s, 60.9 MB/s
>
> That is the block is at least 1MiB, ask for 1MiB, got 1MiB.
>
> If I read one more byte, I get a kernel error
>
> dd if=/dev/rmt/0b bs=1048577 count=1 of=/dev/null
> dd: reading '/dev/rmt/0b': Invalid argument
> 0+0 records in
> 0+0 records out
> 0 bytes (0 B) copied, 0.00532612 s, 0.0 kB/s
>
> (see /var/adm/messages)
> Dec 18 15:09:50 monza.motec.com.au scsi: [ID 107833 kern.notice]
> /pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/tape at w5000e11156304003,0 (st5):
> Dec 18 15:09:50 monza.motec.com.au Read Write scsi_init_pkt() failure
> Dec 18 15:09:50 monza.motec.com.au scsi: [ID 107833 kern.warning] WARNING:
> /pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/tape at w5000e11156304003,0 (st5):
> Dec 18 15:09:50 monza.motec.com.au errors after pkt alloc (b_flags=0x2200065, b_error=0x16)
>
> Is this a driver issue? Does st5 mean LUN 5?
>
> grep -e '\<st\>' -e '\<sgen\>' /etc/path_to_inst
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0/tape at w5000e11156304003,0" 2 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0/medium-changer at w5000e11156304003,1" 3 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0/medium-changer at w5000e11156304003,1" 1 "sgen"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0/tape at w5000e11156304002,0" 4 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0/medium-changer at w5000e11156304002,1" 3 "sgen"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/tape at w5000e11156304002,0" 0 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/medium-changer at w5000e11156304002,1" 1 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/medium-changer at w5000e11156304002,1" 0 "sgen"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/tape at w5000e11156304003,0" 5 "st"
> "/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f/medium-changer at w5000e11156304003,1" 2 "sgen"
>
> # iostat -En rmt/0 rmt/1
> rmt/1 Soft Errors: 0 Hard Errors: 0 Transport Errors: 0
> Vendor: IBM Product: ULT3580-TD5 Revision: B6W0 Serial No:
> rmt/0 Soft Errors: 4 Hard Errors: 0 Transport Errors: 11
> Vendor: IBM Product: ULT3580-TD5 Revision: B6W0 Serial No:
>
>
> BTW, the tape unit is configured through a backplane onto an LSI SAS 9207-8i which also has SSD
> connected to it. Is this going to cause the issues I'm seeing?
>
> cfgadm -av
> ---8<---
> Ap_Id Receptacle Occupant Condition Information
> When Type Busy Phys_Id
> c1 connected configured unknown
> unavailable scsi-sas n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi
> c1::dsk/c1t5000A72A30086BBDd0 connected configured unknown STEC ZeusRAM
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::dsk/c1t5000A72A30086BBDd0
> c1::dsk/c1t5000A72A300893E9d0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::dsk/c1t5000A72A300893E9d0
> c1::dsk/c1t5000A72A300893EBd0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::dsk/c1t5000A72A300893EBd0
> c1::dsk/c1t5000A72A300893EDd0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::dsk/c1t5000A72A300893EDd0
> c1::dsk/c1t5000A72A300893F1d0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::dsk/c1t5000A72A300893F1d0
> c1::es/ses0 connected configured unknown LSI SAS2X28
> unavailable ESI n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::es/ses0
> c1::rmt/0 connected configured unknown IBM ULT3580-TD5
> unavailable tape n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::rmt/0
> c1::scsi/changer/c1t5000E1115 connected configured unknown IBM 3573-TL
> unavailable med-changer n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::scsi/changer/c1t5000E11156304003d1
> c1::smp/expd0 connected configured unknown LSI SAS2X28
> unavailable smp n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f:scsi::smp/expd0
> c2 connected configured unknown
> unavailable scsi-sas n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi
> c2::dsk/c2t5000A72B30086BBDd0 connected configured unknown STEC ZeusRAM
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::dsk/c2t5000A72B30086BBDd0
> c2::dsk/c2t5000A72B300893E9d0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::dsk/c2t5000A72B300893E9d0
> c2::dsk/c2t5000A72B300893EBd0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::dsk/c2t5000A72B300893EBd0
> c2::dsk/c2t5000A72B300893EDd0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::dsk/c2t5000A72B300893EDd0
> c2::dsk/c2t5000A72B300893F1d0 connected configured unknown STEC S842E200M2
> unavailable disk n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::dsk/c2t5000A72B300893F1d0
> c2::es/ses1 connected configured unknown LSI SAS2X28
> unavailable ESI n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::es/ses1
> c2::rmt/1 connected configured unknown IBM ULT3580-TD5
> unavailable tape n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::rmt/1
> c2::scsi/changer/c2t5000E1115 connected configured unknown IBM 3573-TL
> unavailable med-changer n
> /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::scsi/changer/c2t5000E11156304002d1
> c2::smp/expd1 connected configured unknown LSI SAS2X28
> unavailable smp n /devices/pci at 0,0/pci8086,3c0a at 3,2/pci1000,3020 at 0/iport at f0:scsi::smp/expd1
> ---8<---
>
> Any help is appreciated.
>
> Kind regards,
> Tom
>
>
>
> _______________________________________________
> OmniOS-discuss mailing list
> OmniOS-discuss at lists.omniti.com
> http://lists.omniti.com/mailman/listinfo/omnios-discuss

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://omniosce.org/ml-archive/attachments/20131219/c52d83ab/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 263 bytes
Desc: OpenPGP digital signature
URL: <https://omniosce.org/ml-archive/attachments/20131219/c52d83ab/attachment-0001.bin>