Hi toasters!
I'm facing with very odd performance issue during the backup of snapshots. I have OmniBak Disk Agent instaled on HP-UX 11.0 and F740 DOT 6.0.1R3 when I start with backup procedure, the performances are as follow (sysstat 2):
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache 21% 179 12 0 113 1061 2205 0 0 0 1 19% 207 8 0 167 1153 1132 0 0 0 1 21% 127 8 0 114 555 1473 868 0 0 1 17% 128 51 0 118 514 525 0 0 0 1 16% 114 15 0 124 319 353 0 0 0 1 16% 109 11 0 116 347 656 0 0 0 1 16% 123 5 0 127 308 369 0 0 0 1 20% 168 10 0 117 894 878 844 0 0 1 16% 115 5 0 143 331 543 0 0 0 1 16% 123 12 0 138 283 241 0 0 0 2 18% 147 9 0 131 623 1370 0 0 0 2 29% 364 7 0 183 2970 6333 0 0 0 2
As you can see, there is practicaly no network traffic. When I perform more load on Filer thrue HP server (such as tar or copy data on filer), the speed of writing on LTO is about 10 times faster:
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache 76% 1093 41 0 388 23459 22188 1114 0 0 0 69% 1065 8 0 296 23111 22049 0 0 0 0 65% 735 6 0 342 20897 20332 0 0 0 0 58% 673 14 0 270 17603 17106 0 0 0 0 68% 869 48 0 257 22127 21323 0 0 0 0 82% 1020 50 0 7776 14957 13749 1315 0 0 0 77% 925 15 0 3213 13063 13185 8583 0 0 0 76% 1163 10 0 350 25681 24400 0 0 0 0 67% 986 63 0 389 19134 19058 0 0 0 0 68% 922 288 0 315 19461 18464 0 0 0 0 66% 943 101 0 248 20260 18998 0 0 0 0 75% 1067 9 0 277 23741 23182 458 0 0 0 79% 1025 14 0 270 22664 22671 4621 0 0 0 76% 891 24 0 236 26903 25523 0 0 0 0 80% 1064 164 0 314 26847 25485 0 0 0 0
Do you have any idea what is going on?
Matej
---------------------------------------- Matej Moškon Our Space Appliances d.o.o. Tbilisijska 59, 1111 Ljubljana email: matej.moskon@ourspace.si tel: + 386 01 24 25 392 faks: + 386 01 24 25 382 http://www.ourspace.si ----------------------------------------