Re: [Bacula-users] Copy/Migration utilization

2011-07-10 Thread Harald Schmalzbauer
schrieb Harald Schmalzbauer am 10.07.2011 16:28 (localtime): > schrieb Adrian Reyer am 10.07.2011 15:58 (localtime): > ... >> I found using Spool Data for copy jobs to be faster for my setup. I have >> fast local disks for spooling, but some of my disk storage is accessed >> vie iSCSI on 1-GBit/s-l

Re: [Bacula-users] Copy/Migration utilization

2011-07-10 Thread Harald Schmalzbauer
schrieb Adrian Reyer am 10.07.2011 15:58 (localtime): ... > I found using Spool Data for copy jobs to be faster for my setup. I have > fast local disks for spooling, but some of my disk storage is accessed > vie iSCSI on 1-GBit/s-links. > However, I am currently running a few copy jobs and the limi

Re: [Bacula-users] Copy/Migration utilization

2011-07-10 Thread Adrian Reyer
Hi Harry, On Sun, Jul 10, 2011 at 03:39:36PM +0200, Harald Schmalzbauer wrote: > The server is at remote site, so I can't hear any mechanicals, but I > guess "at rest" means stop, thus my worries about extensive repositioning. Sorry, I am no expert on drives and only use bacula my very self for 6

Re: [Bacula-users] Copy/Migration utilization

2011-07-10 Thread Harald Schmalzbauer
schrieb Adrian Reyer am 10.07.2011 14:43 (localtime): > Hi Harry, > > On Sun, Jul 10, 2011 at 01:38:52PM +0200, Harald Schmalzbauer wrote: >> of a average transfer rate of 65MB/s makes me worrying about massive >> repositioning. > > AFAIK LTO-Drives have adaptive speeds compared to older technolo

Re: [Bacula-users] Copy/Migration utilization

2011-07-10 Thread Adrian Reyer
Hi Harry, On Sun, Jul 10, 2011 at 01:38:52PM +0200, Harald Schmalzbauer wrote: > of a average transfer rate of 65MB/s makes me worrying about massive > repositioning. AFAIK LTO-Drives have adaptive speeds compared to older technologies. If the data comes in slower, the drive will just run slower

[Bacula-users] Copy/Migration utilization

2011-07-10 Thread Harald Schmalzbauer
Dear bacula insiders, I got a replacement for my old DDS5 - a LTO4. Setup is D2D2T. The problem is not the setup, but the tape drive utilization. The disk-storage can provide well over 300MByte/s, and using tar with -b 126 or dump or dd, I see 78-160MB/s moving to the drive. So the problem is prob