Re: LTO5 HH FC to LTO7 HH FC performance numbers

[Joe Wood <wood3875@xxxxxxxxx>]

Paul,

Yes, thanks for sharing.

Very thorough.  Any encryption in play ?  if so, TKLM or SKLM version ?



On Fri, Apr 8, 2016 at 7:02 AM, Rob Berendt <rob@xxxxxxxxx> wrote:

> Thanks for sharing.
>
>
> Rob Berendt
> --
> IBM Certified System Administrator - IBM i 6.1
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> From:   "Steinmetz, Paul" <PSteinmetz@xxxxxxxxxx>
> To:     "'Midrange Systems Technical Discussion'"
> <midrange-l@xxxxxxxxxxxx>
> Date:   04/08/2016 08:43 AM
> Subject:        LTO5 HH FC to LTO7 HH FC performance numbers
> Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
>
>
>
>
> Below are some performance comparisons from LTO5 HH FC to LTO7 HH FC.
> 3573 library attached to 2 LPARS via Brocade 300 SAN fiber switch, with 8
> gb ports.
> Fiber switch configured so each LPAR can see all four drives.
> SYSA IOPA Port1  sees both  PORT5 TAPE1 and PORT6 TAPE2 SYSA IOPA Port2
> sees both PORT7  TAPE3 and PORT8  TAPE4.
> SYSB IOPB Port1  sees both PORT5 TAPE1 and Port6 TAPE2 SYSB IOPB Port2
> sees both PORT7 TAPE3 and Port8  TAPE4.
> 2 drives per port of the 577D IOA.
> All 4 drives with control paths.
>
> BRMS AutoDup saw the biggest savings.
> BRMS Save was next.
> BRMS RSTLIBBRM saw the least savings.
> The DASD subsystem is also a significant factor.
> Both systems basically idle when all tape jobs were run, little or no
> impact from other jobs.
> Only 1 drive used for save and restores.
>
>                                       LTO5      LTO7
> Production LPAR P7 740 82051-E6C
> V7R1 Latest CUM, TR11
> 155 gb mem
> 1.5 CPU
> 5913 PCIe2 1.8GB Cache RAID SAS Adapter Tri-port 6Gb
> 100% SSD
> Disk response time - 2 ms no wait time
> 577D 8 Gigabit PCI Express Dual Port Fibre Channel Adapter
>
>
> BRMS FULL SAVE While Active (approx. 2.4 tb)                   2 hour 15
> minutes            1 hour 15 minutes
> BRMS AutoDup for above (252 seq)                                        5
> hours                                 2 hour
> BRMS RSTLIBBRM (534 gb)      43 minutes
>
> R&D LPAR P7 740 8205-E6C
> V7R1 Latest CUM, TR11
> 80 gb mem
> 1.0 CPU
> 5913 PCIe2 1.8GB Cache RAID SAS Adapter Tri-port 6Gb
> 100% 10k spiny
> Disk response time - 8 ms 1 ms wait time
> 577D 8 Gigabit PCI Express Dual Port Fibre Channel Adapter
>
>
> BRMS Incremental  SAVE While Active (approx. 2tb)        3 hour 10 minutes
>            1 hour 55 minutes
> BRMS AutoDup for above (131 seq)                                        3
> hours 10 minutes          2 hour 10 minutes
> BRMS 20 RSTLIBBRM (1 tb)        2 hrous 20 minutes          1 hour 54
> minutes
>
> Thank You
> _____
> Paul Steinmetz
> IBM i Systems Administrator
>
> Pencor Services, Inc.
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> psteinmetz@xxxxxxxxxx<mailto:psteinmetz@xxxxxxxxxx>
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