Chapter 13. Monitoring Server and Database Activity

Table Header

Description

 

 

Read/Write

Indicates whether the server is currently

 

blocked for read or write access to the client.

 

There are two possible values:

 

Not blocked means that the server is

 

idle,actively sending data to the client, or

 

actively reading data from the client.

 

Blocked means that the server is trying to

 

send data to the client or read data from the

 

client but cannot. The probable cause is a

 

slow network or client.

 

 

Table 13.4. Connection Status

 

Table Header

Description

 

 

Hits

The number of times the server could process

 

a request by obtaining data from the cache

 

rather than by going to the disk.

 

 

Tries

The total number of requests performed on

 

the directory since server startup.

 

 

Hit Ratio

The ratio of cache tries to successful cache

 

hits. The closer this number is to 100%, the

 

better.

 

 

Pages Read In

The number of pages read from disk into the

 

cache.

 

 

Pages Written Out

The number of pages written from the cache

 

back to disk.

 

 

Read-Only Page Evicts

The number of read-only pages discarded

 

from the cache to make room for new pages.

 

Pages discarded from the cache have to be

 

written to disk, possibly affecting server

 

performance. The lower the number of page

 

evicts the better.

 

 

Read-Write Page Evicts

The number of read-write pages discarded

 

from the cache to make room for new pages.

 

This value differs from Pages Written Out in

 

that these are discarded read-write pages that

 

have not been modified. Pages discarded

 

from the cache have to be written to disk,

 

possibly affecting server performance. The

 

lower the number of page evicts, the better.

 

 

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HP UX Red Hat Direry Server Software manual Connection Status