topic Re: Calculate , how much has been restored from tape in 1 minute in Operating System - HP-UX

Calculate , how much has been restored from tape in 1 minute

Alok_Behria — Mon, 03 Feb 2014 13:29:06 GMT

Hi All,

jdatest> uname -a
HP-UX jdadev B.11.11 U 9000/800 3251073457 unlimited-user license

We are in process of retoring datafiles from tape. it appeares to us that tapes are really slow to respond and now I am thinking of ctreating one schell script , which would able to calculate the data restored in terms of MB/per per minute. Looking forward to hear from you.

Regards

Alok

Re: Calculate , how much has been restored from tape in 1 minute

Torsten. — Mon, 03 Feb 2014 15:06:18 GMT

I would first check the bus speed (depending on technology used).

Example:

# scsictl -c get_target_parm /dev/rdsk/c2t0d0

# mptconfig /dev/mpt0

Re: Calculate , how much has been restored from tape in 1 minute

Alok_Behria — Mon, 03 Feb 2014 15:20:15 GMT

Thanks for the inputs. I think , my mistake , as I did not describe the way . I'd like it be. well, I have around 46 mound points like /db/jdatest/data1 to /db/jdatest/data46 and I am trying to do the df -P at 2 different interval to calculate , how much has been restored to disk from tape. since this effort is manual , I was thinking of creating a script , which will periodically tell us , how much being restored. I hope, I was able to communicated my point of concern this time.

Re: Calculate , how much has been restored from tape in 1 minute

Torsten. — Mon, 03 Feb 2014 15:32:59 GMT

But "slow" may depend on the way you restore or the bus between the devices or even a problem with the tape drive itself.

I would also do an assessment test using LTT http://www.hp.com/support/tapetools

Re: Calculate , how much has been restored from tape in 1 minute

Alok_Behria — Mon, 03 Feb 2014 15:56:29 GMT

Agreed!! but right now, I do not have access to these tapes and are made to wait for no reasons. I just need a way to calcualte , how much is getiing added to disks with the help of script. hope, you you understand.

Regards

Alok

Re: Calculate , how much has been restored from tape in 1 minute

Bill Hassell — Tue, 04 Feb 2014 18:42:08 GMT

The simplest is to run this command line.

while : ; do du -sk /Dir_to_Watch;sleep 60;done

This will report the total number of Kbytes in the directory you want to watch every 60 seconds.