AIX

had this p520 server connected to a DDS-3 4mm tape drive...

running AIX 7.1 TL01 -- the latest release.

mksysb -i -e /dev/rmt/1 ..tells me only 1% is done after over an hour ...

I had no problems with th hardware and other connections...

tar command to /dev/rmt/1 runs very fast ....

tape block size is default to 512 bytes..

"/dev/rmt/1" ?!?!... WT...!!!

What an earth are you trying to write to?

trying to write to the tape, DDS-3 4mm tape ...

took about 1 hr to write 1%..

not sure if block_size has anything to do with it...

my correction, the tape device is /dev/rmt1..

it is still slow, takes 1 hr to do 1%...using mksysb -e -i /dev/rmt1

---------- Post updated at 06:12 PM ---------- Previous update was at 10:14 AM ----------

I gave up hopes but manage to find a LVD 320 drive , to be my /dev/rmt0

mksysb -e -i /dev/rmt0 took about 40 minutes or less ...completed

where before using /dev/rmt1 took about 1 hr to finish 1%...

/dev/rmt1 is my DDS-3 HP 4mm tape