no more compression on sdlt1drive after install 51B + Kit3 + mandatory patch

[esteoule]

After installing V51B with kit and patch, my
ES40 with flexlm don't compress data during backup with tina (time navigator) from atempo.
The backup need a new cartridge afer 110 gigas.
I have compared the ddrdatabase on V51A et V51B
It's the same thing for SDLT1. I use an overland loader with quantum driver who don't appear in the ddrdatabase. The only name "compaq" is mentionned in ddrdatabase
for SDLT. The compression was very good with V51A. If compression stay off i must buy for a month cartridge for nothing, so I prepare a go back system to V51A last week.
my device is ntape/tape1_d1 (max compression)
If someone have a need idea, please reply.

[Johan Brusche]

Hi,

Could you do a test with /dev/ntape/tape1c, where c=compression ?

And what is "mt -f /dev/tape/tape1_d1 status" telling you..?

Johan.

[esteoule]

Hi,
I have also test the /ntape/tape1c last week and it was exactly the same problem.
I shall give you the mnt status tomorrow.
thank's for your response.

[esteoule]

here is the response for
mt -f /dev/tape/tape1_d1 status

DEVIOGET ELEMENT CONTENTS
---------------- --------
category DEV_TAPE
bus DEV_SCSI
interface SCSI
device SuperDLT
adpt_num 0
nexus_num 3
bus_num 0
ctlr_num 8
slave_num 13
dev_name tz
unit_num 13
soft_count 0
hard_count 1
stat 0x1
DEV_BOM
category_stat 0x0
DEV_131000_BPI

DEVGETINFO ELEMENT CONTENTS
------------------ --------
media_status 0x10001
BOM POS_VALID
unit_status 0x121
Ready 2_FM_Close Rewind Buffered
record_size 0
density (current) 131000 BPI
density (on write) 0 BPI
Filemark Cnt 0
Record Cnt 0
Class 2 - RDAT

MTIOCGET ELEMENT CONTENTS
---------------- --------
mt_type MT_ISSCSI
mt_dsreg 0x1
DEV_BOM
mt_erreg 0x0 No error or no sense info.
mt_resid 0
mt_fileno 0
mt_blkno 0
DEV_EEI_STATUS
version 0x2
status 0x0 No EEI status available
flags 0x1000000
CAM_DATA
cam_status 0x0 No CAM status available
scsi_status 0x0 SCSI_STAT_GOOD
scsi_sense_data not valid