Measure Reference Manual

LS-MSG-QLEN-MAX
(Measure G10 PVU only) Maximum number of concurrent local server messages outstanding on
an OSS name server since it began execution.
In H-series and J-series RVUs, this counter has a value of 1.
Counter type: Max queue.
PS-MSG-QLEN-MAX
(Measure G10 PVU only) Maximum number of concurrent pipe server messages outstanding on
an OSS name server since it began execution.
In H-series and J-series RVUs, this counter has a value of 1.
Counter type: Max queue.
SEM-WAIT-QLEN-MAX
(Measure G10 PVU only) Maximum number of resolution request semaphore waits on an OSS
name server since it began execution.
In H-series and J-series RVUs, this counter has a value of 1.
Counter type: Max queue.
Usage Notes for OSSNS Entities
• Fields that report received or redirected resolution requests reflect the capacity of an OSS
name server to route requests to the appropriate resource. When a request is sent to a name
server, the name server might be able to completely process the request, or it might require
the services of another name server. In the latter case, the first name server replies to the client
with a redirection reply, which causes the file-system library running in the client to compose
and send a new redirected request to the second name server.
• Inode and link cache counters report on cache performance for OSS fileset catalog accesses.
The OSS fileset catalog consists of three Guardian disk files:
A key-sequenced file containing one record for each directory, regular file, FIFO, and AF_UNIX
socket.
PXINODE
A key-sequenced file containing one record for each file name in the fileset.PXLINK
An unstructured file used to ensure catalog integrity after a failure. PXLOG is used only when the
fileset is configured with BUFFERED NONE.
PXLOG
To reduce the frequency of access to the PXINODE and PXLINK files, name servers cache
records from these files in memory. Separate caches are used for each file. Cache size is
reported in IC-ENTRIES and LC-ENTRIES. The size of the caches can be changed individually.
Both the primary and backup name server processes have PXINODE caches. Only the primary
290 Entities and Counters