After an upgrade of a busy server to Oracle Solaris 10 9/10, I notice
a process called zpool-poolname that has 99 threads. This seems to be
a limit, as it never goes above that. It is lower on workstations.
The `zpool' man page says only:
Processes
Each imported pool has an associated process, named zpool-
poolname. The threads in this process are the pool's I/O
processing threads, which handle the compression, checksum-
ming, and other tasks for all I/O associated with the pool.
This process exists to provides visibility into the CPU
utilization of the system's storage pools. The existence of
this process is an unstable interface.
There are several thousand processes doing ZFS I/O on the busy server.
Could this new process be a limitation in any way? I'd just like to
rule it out before looking further at I/O performance.
--
-Gary Mills- -Unix Group- -Computer and Network Services-
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