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Testing disk I/O on HP DL320-series boxes

Common for all tests: Debian Lenny.4, EXT3 file-system, default setup.

HP DL320s G1

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC off, med/med priority, 25/75 acc pri, building

Smart Array P400 in Slot 2
   Firmware Version: 4.06
   Rebuild Priority: Medium
   Expand Priority: Medium
   Accelerator Ratio: 25% Read / 75% Write
   Drive Write Cache: Disabled
   Total Cache Size: 512 MB
      logicaldrive 1 (2.5 TB, RAID 5, OK)
         Stripe Size: 64 KB
         Status: OK
         Array Accelerator: Enabled
         Parity Initialization Status: In Progress
box1:~# cat bonnie_box1 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box1             7G 56994  99 70378  25 31370   9 63906  96 214870  34 625.1   1
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box1,7G,56994,99,70378,25,31370,9,63906,96,214870,34,625.1,1,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC on, med/med priority, 50/50 acc pri, building

   Accelerator Ratio: 50% Read / 50% Write
   Drive Write Cache: Enabled
box2:~# cat bonnie_box2 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box2             7G 56867  99 161523  55 51480  16 64391  97 220993  35 627.8   1
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box2,7G,56867,99,161523,55,51480,16,64391,97,220993,35,627.8,1,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC on, med/med priority, 50/50 acc pri, complete

         Parity Initialization Status: Initialization Completed
box2:~# cat bonnie_box2 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box2             7G 57185  99 175482  56 58611  18 65126  97 219533  35 606.4   0
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box2,7G,57185,99,175482,56,58611,18,65126,97,219533,35,606.4,0,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC off, med/med priority, 50/50 acc pri, complete

   Drive Write Cache: Disabled
box2:~# cat bonnie_box2 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box2             7G 52916  97 71789  26 33657  10 61096  96 214516  35 625.1   0
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box2,7G,52916,97,71789,26,33657,10,61096,96,214516,35,625.1,0,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC off, med/med priority, 25/75 acc pri, complete

   Accelerator Ratio: 25% Read / 75% Write
   Drive Write Cache: Disabled
         Parity Initialization Status: Initialization Completed
box1:~# cat bonnie_box1 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box1             7G 56868  98 72069  26 32848   9 64018  96 217405  36 630.9   1
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box1,7G,56868,98,72069,26,32848,9,64018,96,217405,36,630.9,1,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

SMART P400, RAID5, 64k stripe, Array accelerator on, DWC on, med/med priority, 25/75 acc pri, complete

   Drive Write Cache: Enabled
box1:~# cat bonnie_box1 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box1             7G 55637  96 176395  57 60997  19 64759  97 219313  35 612.9   0
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box1,7G,55637,96,176395,57,60997,19,64759,97,219313,35,612.9,0,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

Suggested conclusion: accelerator priority is of little relevance, DWC improves block writes significantly, but has little-to-no other effect.

HP DL320 G5

First test: RAID1 with Drive Write Cache enabled.

Smart Array E200 in Slot 2
   Firmware Version: 1.66
   Rebuild Priority: Medium
   Expand Priority: Medium
   Accelerator Ratio: 100% Read / 0% Write
   Drive Write Cache: Enabled
      logicaldrive 1 (232.9 GB, RAID 1+0, OK)
         Stripe Size: 128 KB
         Array Accelerator: Enabled
box4:~# cat bonnie_box4 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box4             7G 11171  23 11281   3  9384   2 51479  79 55065   8 373.9   0
                   en ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ 21155  24
box4,7G,11171,23,11281,3,9384,2,51479,79,55065,8,373.9,0,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,21155,24

Second test: RAID1 with Drive Write Cache disabled.

Smart Array E200 in Slot 2
   Hardware Revision: Rev A
   Firmware Version: 1.66
   Rebuild Priority: Medium
   Expand Priority: Medium
   Accelerator Ratio: 100% Read / 0% Write
   Drive Write Cache: Disabled
      logicaldrive 1 (232.9 GB, RAID 1+0, OK)
         Stripe Size: 128 KB
         Array Accelerator: Enabled
box3:~# cat bonnie_box3 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box3             7G 11001  23 11116   3  9096   2 51365  79 53534   8 368.5   0
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box3,7G,11001,23,11116,3,9096,2,51365,79,53534,8,368.5,0,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++

On the P200, no apparent performance gain with DWC on. Accelerator ratio is fixed on this controller. Stripe size may have an effect, will not be tested now…

HP DL585

Smart Array 5i in Slot 0
   Rebuild Priority: Low
   Expand Priority: Low
   Accelerator Ratio: 50% Read / 50% Write
   Total Cache Size: 48 MB
      logicaldrive 1 (67.8 GB, RAID 1+0, OK)
         Stripe Size: 128 KB
         Array Accelerator: Enabled
box6:~# cat bonnie_box6 
Version 1.03d       ------Sequential Output------ --Sequential Input- --Random-
                    -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine        Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP  /sec %CP
box6             8G 33252  99 39801  20 19400   7 40641  96 61625  12 823.0   2
                    ------Sequential Create------ --------Random Create--------
                    -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
              files  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
                 16 +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++ +++++ +++
box6,8G,33252,99,39801,20,19400,7,40641,96,61625,12,823.0,2,16,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++,+++++,+++