Re: LTO strange behaviour

2002-02-13 Thread Anderson F. Nobre
y, February 13, 2002 4:30 PM > To: [EMAIL PROTECTED] > Subject: Re: LTO strange behaviour > > > You mention 20 MB/sec and that the SAP database is on an SSA array. Well > some SSA array's have a maximum throughput of 20 MB/sec. This depends on the > adapter, and how you

Re: LTO strange behaviour

2002-02-13 Thread Denzel, Richard van
3584 LTO with 8 LVD drives TSM server 4.2.1.8 TSM client 4.2.1.15 TDP for R/3 3.2.0.6 Richard. -Original Message- From: James Thompson [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 13, 2002 4:30 PM To: [EMAIL PROTECTED] Subject: Re: LTO strange behaviour Yo

Re: LTO strange behaviour

2002-02-13 Thread James Thompson
You mention 20 MB/sec and that the SAP database is on an SSA array. Well some SSA array's have a maximum throughput of 20 MB/sec. This depends on the adapter, and how you have the SSA array configured. It would be nice to get the machines hardware configuration more completely. Also have you be

Re: LTO strange behaviour

2002-02-12 Thread Denzel, Richard van
ce lab now. Thanks for sharing, Richard. -Original Message- From: Kauffman, Tom [mailto:[EMAIL PROTECTED]] Sent: Tuesday, February 12, 2002 4:19 PM To: [EMAIL PROTECTED] Subject: Re: LTO strange behaviour Richard -- We run our TSM server on a system that serves as our SAP fallover box

Re: LTO strange behaviour

2002-02-12 Thread Kauffman, Tom
e. You've really got twice the I/O running. Tom Kauffman NIBCO, Inc > -Original Message- > From: Denzel, Richard van [mailto:[EMAIL PROTECTED]] > Sent: Monday, February 11, 2002 3:33 AM > To: [EMAIL PROTECTED] > Subject: Re: LTO strange behaviour > > > James, &g

Re: LTO strange behaviour

2002-02-12 Thread Denzel, Richard van
ll in the labs there somewhere. Richard. -Original Message- From: James Thompson [mailto:[EMAIL PROTECTED]] Sent: Friday, February 08, 2002 3:46 PM To: [EMAIL PROTECTED] Subject: Re: LTO strange behaviour What you really need to find out is how fast are you sending data to the LTO tape drives

Re: LTO strange behaviour

2002-02-08 Thread James Thompson
What you really need to find out is how fast are you sending data to the LTO tape drives. The tape drives can only go as fast as the data stream you send to them. Or as fast as the destination can accept on a restore. If you are only sending 2.5 MB/sec to the tape drives, then don't complain wh

Re: LTO strange behaviour

2002-02-07 Thread Denzel, Richard van
Nope, The 3584 is direct SCSI attached. Richard. -Original Message- From: Mike Swinhoe [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 07, 2002 5:17 PM To: [EMAIL PROTECTED] Subject: Re: LTO strange behaviour If you are using a SAN DATa Gateway to bridge the gap between your FC

Re: LTO strange behaviour

2002-02-07 Thread Mike Swinhoe
: Sent by: Subject: Re: LTO strange behaviour "ADSM: Dist Stor Manager" <[EMAIL PROTECTED] RIST.EDU> 07/02/02 16:03

Re: LTO strange behaviour

2002-02-07 Thread Kelly Lipp
Where is the data coming from? During the testing I did on LTO vs. SDLT I observed similar behavior. I concluded that the RAID5 set containing my disk storage pools was the bottleneck. The paper is available at http://www.storsol.com/pub/LTOvsSDLT.pdf?timeout=200 Kelly J. Lipp Storage Solutio