Re: [CentOS] gtar compression achieved

2012-02-07 Thread Alexandru Chiscan
On 02/01/2012 04:18 PM, Alan McKay wrote: > Hey folks, > > I looked at the man page and don't see any way to do this - maybe it is a > function of the compression program used I dunno. > > Is there any way to get gtar to report on the compression it achieved? > > I can't just check file sizes becau

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 2:58 PM, Alan McKay wrote: > On Wed, Feb 1, 2012 at 11:32 AM, Les Mikesell wrote: > >> 'Deploying' amanda is a matter of installing the rpm and editing a >> couple of config files about the tape drive, tapes, targets, and >> holding space.  And maybe some firewall tweaking

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Lamar Owen
On Wednesday, February 01, 2012 04:00:06 PM Alan McKay wrote: > The GZIP environment variable is working really well. It tells me the > compression ratio and even send it to STDERR for me so I can easily > separate that from the gtar output. Cool. That's useful information. _

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
On Wed, Feb 1, 2012 at 2:10 PM, Lamar Owen wrote: > What I would do is use the '-' special filename to pipe the uncompressed > tar to stdout, pipe to the compressor of choice, then pipe to tee, and have > one branch of the tee go to the tape and the other branch go to a program > to count bytes.

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
On Wed, Feb 1, 2012 at 11:32 AM, Les Mikesell wrote: > 'Deploying' amanda is a matter of installing the rpm and editing a > couple of config files about the tape drive, tapes, targets, and > holding space. And maybe some firewall tweaking - but nothing really > complicated. You get a lot of co

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 1:10 PM, Lamar Owen wrote: > On Wednesday, February 01, 2012 09:18:08 AM Alan McKay wrote: >> The basic problem is that I know how much data is there to begin with but I >> don't know how much room it took up on the tape so I have no idea how much >> room is left on the tape

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Lamar Owen
On Wednesday, February 01, 2012 09:18:08 AM Alan McKay wrote: > The basic problem is that I know how much data is there to begin with but I > don't know how much room it took up on the tape so I have no idea how much > room is left on the tape. What I would do is use the '-' special filename to pi

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 10:47 AM, John Doe wrote: > >> 'Deploying' amanda is a matter of installing the rpm and editing a >> couple of config files about the tape drive, tapes, targets, and >> holding space.  And maybe some firewall tweaking - but nothing really >> complicated.   You get a lot of c

Re: [CentOS] gtar compression achieved

2012-02-01 Thread John Doe
From: Les Mikesell > 'Deploying' amanda is a matter of installing the rpm and editing a > couple of config files about the tape drive, tapes, targets, and > holding space.  And maybe some firewall tweaking - but nothing really > complicated.  You get a lot of coverage of 'real-world' problems >

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 10:22 AM, Alan McKay wrote: >> >> I haven't used it for a while, but I thought it had an indexing >> mechanism that would let you tell it what you want and it would tell >> you the tapes you need and the order to restore them (for full + >> incremental cases).  And it could

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
> > I haven't used it for a while, but I thought it had an indexing > mechanism that would let you tell it what you want and it would tell > you the tapes you need and the order to restore them (for full + > incremental cases). And it could re-index the tapes if you lost the > disk copy. Maybe t

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 10:10 AM, Alan McKay wrote: >> >> Is there some reason you aren't using amanda?  Give it some holding >> disk space and it will run multiple backups at once, buffering on >> disk, and figure out how they should go on the tape for you. >> > > > I'm archiving, not backing up.

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
> > Is there some reason you aren't using amanda? Give it some holding > disk space and it will run multiple backups at once, buffering on > disk, and figure out how they should go on the tape for you. > I'm archiving, not backing up. I looked at Amanda for a few days and it would be really clu

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 9:59 AM, Alan McKay wrote: >> >> There is a --totals option, but that is before compression.  I don't >> think there is a way to do it. >> > > Dang.  THere is a "tell" command on "mt" which tells you what block number > you are on, but according to the man page only exists f

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
> > There is a --totals option, but that is before compression. I don't > think there is a way to do it. > Dang. THere is a "tell" command on "mt" which tells you what block number you are on, but according to the man page only exists for some types of drive. And evidently not mine :-( That wo

Re: [CentOS] gtar compression achieved

2012-02-01 Thread Les Mikesell
On Wed, Feb 1, 2012 at 8:18 AM, Alan McKay wrote: > Hey folks, > > I looked at the man page and don't see any way to do this - maybe it is a > function of the compression program used I dunno. > > Is there any way to get gtar to report on the compression it achieved? > > I can't just check file si

[CentOS] gtar compression achieved

2012-02-01 Thread Alan McKay
Hey folks, I looked at the man page and don't see any way to do this - maybe it is a function of the compression program used I dunno. Is there any way to get gtar to report on the compression it achieved? I can't just check file sizes because I'm writing data to tape. The basic problem is that