Re: [Bacula-users] 400G compressed tape only using 215G

[Jason K. <jk...@in...>]

Oh ok, well that makes sense. I'm not sure how much data is already 
compressed. But I understand now.

Thanks,

Jason

John Drescher wrote:
> On 3/2/07, Jason King <jk...@in...> wrote:
>> I have an LTO2 drive with tapes that hold 200g native and 400g with
>> hardware compression. I have the hardware compression turned on on my
>> tape drive. I know because I went and manually made sure using the tape
>> tools that come with FreeBSD (The os the storage daemon is running on).
>> Last night my tape filled up with only 215G. I know it filled up because
>> I got a message to change tapes from the daemon. I didn't do anything
>> specific in Bacula to tell it to use hardware compression on the tape
>> drive because I didn't think I had to. I made sure hardware compression
>> was enabled in FreeBSD. My question is, is there a specific way to tell
>> bacula to take advantage of hardware compression? Perhaps a setting in
>> the storage daemon config file or the bacula director config file.
>>
> If you fit 215G than hardware compression is definitely on. Are you
> saving mpegs, bz2 files or some other already compressed format as
> these will not compress a second time...
>
> John