We're in the process of migrating to ExtremIO for our Oracle 12.1.0.2 upgrade (AIX 7.1 lpar); I am seeing extremely high Avg Read(ms) in the AWR reports for several of the tablespace/datafiles, for example:
Tablespace | Reads | Av Rds/s | Av Rd(ms) | Av Blks/Rd | 1-bk Rds/s | Av 1-bk Rd(ms) | % Opt Reads | Writes | Writes avg/s | Buffer Waits | Av Buf Wt(ms) |
PSINDEX | 8,220 | 2 | 522.89 | 1.15 | 2 | 535.43 | 0 | 1,791 | 0 | 1 | 0 |
PSUNDOTS | 3 | 0 | 13.33 | 1 | 0 | 13.33 | 0 | 2,679 | 1 | 0 | 0 |
GLLARGE | 2,491 | 1 | 26,816.70 | 1 | 1 | 26,816.70 | 0 | 2 | 0 | 0 | 0 |
PSIMAGE2 | 1,859 | 1 | 2,310.48 | 2.88 | 0 | 8,073.29 | 0 | 187 | 0 | 0 | 0 |
APLARGE | 1,318 | 0 | 0.3 | 15.91 | 0 | 10 | 0 | 2 | 0 | 0 | 0 |
PTTBL | 478 | 0 | 56,259.14 | 1 | 0 | 56,259.14 | 0 | 801 | 0 | 1 | 0 |
SYSAUX | 54 | 0 | 1.48 | 1 | 0 | 1.48 | 0 | 619 | 0 | 0 | 0 |
Not seeing this on our current VMAX system it's migrating from - any good advice appreciated, thanks.
Thanks for posting the question. A few observations:
Ideas for more analysis: