The 'Errors' and 'Dropped' counters are all zero or near zero. Are you seeing entries in the errpt ?
Remember that the performance guide is often a 'best case' scenario. Are you using 'Jumbo Frame' support? Is that even offered in AIX 4.3.3 ?
Also, consider that this is over 149 days...
chdev -l rmt0 -a block_size=0
Are you using 'smit' ?
Try using "smit backup" and set your options as desired, only up the 'buffer size'. The tape drive likely as a few MB buffer in it, so set the buffer size to roughly the same size as the tape drive buffer size.
I currently backup over 300GB...
mt -f /dev/rmt0 rewind (replace rmt0 with your tape drive)
mt -f /dev/rmt0.1 fsf 3
dd if=/dev/rmt0.1 of=somefilenamewhichwillbethemksysbimage
As for a node booting it ? Only if it is SCSI directly attached or SAN zoned.
BV
The method of update you have chosen is fine. Generally, there are no issues with that method as far as your second concern is. There is always a chance something could break - so take at leat 2 mksysb's before you start.
BV
You cannot preserve your old data. You'll need 2 drives on the RAID adapter, then you'll need to copy the data from the existing drive to the RAID array.
I suggest you add just a regular second drive and mirror within Windows via disk manager.
Because the 'tee' command is a separate process and is run after the previous command, it will provide the final result code. I personally ran into this today with a script I was working on.
BV
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