topic Perf. SuperStore in Disk Enclosures https://community.hpe.com/t5/disk-enclosures/perf-superstore/m-p/2727462#M4853 Hi Masters,<BR /> Pl explain the significance of the output of following commands.<BR /><BR /># arraydsp -m 05201000 05201800 12<BR /><BR />Vendor ID = HP<BR />Product ID = C5447A<BR />Array serial number = 00000025FB31<BR />Performance Metrics<BR />--------------------------------------------------------------------------------<BR />Requested Period = 10:00 05/20/2002 to 18:00 05/20/2002<BR />Actual Period = 10:45 05/20/2002 to 18:30 05/20/2002<BR />Interval = 4<BR /><BR />Out-of-Spec Indicator = *<BR />--------------------------------------------------------------------------------<BR /> Drive Relocate Working Cache SCS<BR /> Difference Blocks Set Util<BR />05/20/2002<BR />10:45 0.000 0.010 *5.660 0.000 51.00<BR />11:45 0.000 0.000 *5.510 0.000 51.00<BR />12:45 0.000 0.000 *5.320 0.000 47.00<BR />13:45 0.000 0.020 *5.100 0.000 52.00<BR />14:45 0.000 0.000 *4.920 0.000 55.00<BR />15:45 0.000 0.000 *4.830 0.000 43.00<BR />16:45 0.000 0.000 *4.750 0.000 53.00<BR /><BR />--------------------------------------------------------------------------------<BR /><BR /> Cache Host Through IO Concurrenc<BR /> Q Q Put Rate Metri<BR />05/20/2002<BR />10:45 0.110 0.000 1664640.000 53.000 51.00<BR />11:45 0.080 0.000 1270272.000 52.000 51.00<BR />12:45 0.090 0.000 1114752.000 46.000 47.00<BR />13:45 0.060 0.000 878208.000 25.000 52.00<BR />14:45 0.060 0.000 372224.000 21.000 55.00<BR />15:45 0.070 0.000 362368.000 18.000 43.00<BR />16:45 0.100 0.000 2633088.000 67.000 53.00<BR /><BR />--------------------------------------------------------------------------------<BR /><BR /><BR /><BR /># arraydsp -r 05201000 05201800 12<BR /><BR />Vendor ID = HP<BR />Product ID = C5447A<BR />Array serial number = 00000025FB31<BR />Performance Recommendations (10:00 05/20/2002 to 18:00 05/20/2002):<BR />--------------------------------------------------------------------------------<BR />Add another disk array because the write working set is too large.<BR /><BR />The number of write I/Os being performed by the host on a daily basis<BR />is consistently exceeding the amount of RAID1 space available to service<BR />them. This results in decreased performance because some writes must be<BR />serviced from RAID 5 space. Adding another disk array to increase the amount<BR />of available RAID1 space should improve performance.<BR /><BR /><BR /><BR /> Mon, 20 May 2002 12:58:33 GMT Ash_4 2002-05-20T12:58:33Z Perf. SuperStore https://community.hpe.com/t5/disk-enclosures/perf-superstore/m-p/2727462#M4853 Hi Masters,<BR /> Pl explain the significance of the output of following commands.<BR /><BR /># arraydsp -m 05201000 05201800 12<BR /><BR />Vendor ID = HP<BR />Product ID = C5447A<BR />Array serial number = 00000025FB31<BR />Performance Metrics<BR />--------------------------------------------------------------------------------<BR />Requested Period = 10:00 05/20/2002 to 18:00 05/20/2002<BR />Actual Period = 10:45 05/20/2002 to 18:30 05/20/2002<BR />Interval = 4<BR /><BR />Out-of-Spec Indicator = *<BR />--------------------------------------------------------------------------------<BR /> Drive Relocate Working Cache SCS<BR /> Difference Blocks Set Util<BR />05/20/2002<BR />10:45 0.000 0.010 *5.660 0.000 51.00<BR />11:45 0.000 0.000 *5.510 0.000 51.00<BR />12:45 0.000 0.000 *5.320 0.000 47.00<BR />13:45 0.000 0.020 *5.100 0.000 52.00<BR />14:45 0.000 0.000 *4.920 0.000 55.00<BR />15:45 0.000 0.000 *4.830 0.000 43.00<BR />16:45 0.000 0.000 *4.750 0.000 53.00<BR /><BR />--------------------------------------------------------------------------------<BR /><BR /> Cache Host Through IO Concurrenc<BR /> Q Q Put Rate Metri<BR />05/20/2002<BR />10:45 0.110 0.000 1664640.000 53.000 51.00<BR />11:45 0.080 0.000 1270272.000 52.000 51.00<BR />12:45 0.090 0.000 1114752.000 46.000 47.00<BR />13:45 0.060 0.000 878208.000 25.000 52.00<BR />14:45 0.060 0.000 372224.000 21.000 55.00<BR />15:45 0.070 0.000 362368.000 18.000 43.00<BR />16:45 0.100 0.000 2633088.000 67.000 53.00<BR /><BR />--------------------------------------------------------------------------------<BR /><BR /><BR /><BR /># arraydsp -r 05201000 05201800 12<BR /><BR />Vendor ID = HP<BR />Product ID = C5447A<BR />Array serial number = 00000025FB31<BR />Performance Recommendations (10:00 05/20/2002 to 18:00 05/20/2002):<BR />--------------------------------------------------------------------------------<BR />Add another disk array because the write working set is too large.<BR /><BR />The number of write I/Os being performed by the host on a daily basis<BR />is consistently exceeding the amount of RAID1 space available to service<BR />them. This results in decreased performance because some writes must be<BR />serviced from RAID 5 space. Adding another disk array to increase the amount<BR />of available RAID1 space should improve performance.<BR /><BR /><BR /><BR /> Mon, 20 May 2002 12:58:33 GMT https://community.hpe.com/t5/disk-enclosures/perf-superstore/m-p/2727462#M4853 Ash_4 2002-05-20T12:58:33Z