Q: Chank Size ?!! - part 2.

From: Ran Zahor <ran_at_wiztec.co.il>
Date: Tue, 21 Oct 1997 12:01:04 +0200

Hi all (again),

My question was:

We currently use Digital ALPHA Server 2000/500 - DU 4.0b.

Does somebody heard about a system parameter (maybe in the kernel)
that can increase the default block size of reading and writing to the
file systems ?


I forgot to mention we currently configured our file system as Advfs.

Thanks to Julian Rodriguez, Ross Alexander, Alan Rollow who up to now
replied
               
When I done the command "sysconfig -q advfs" I received the following
output:
advfs:
AdvfsCacheMaxPercent = 7
AdvfsMinFragGrps = 16
AdvfsMaxFragGrps = 48
AdvfsAccessMaxPercent = 80
AdvfsAccessCleanupPercent = 33
AdvfsSyncMmapPages = 1
AdvfsMaxDevQLen = 80
AdvfsFavorBlockingQueue = 1

When I done the command "sysconfig -q vfs" I received the following
output:
vfs:
name-cache-size = 3141
name-cache-hash-size = 256
buffer-hash-size = 512
special-vnode-alias-tbl-size = 64
bufcache = 3
path-num-max = 64
sys-v-mode = 0
ucred-max = 256
nvnode = 1428
max-vnodes = 10000
min-free-vnodes = 1428
vnode-age = 120
namei-cache-valid-time = 1200
max-free-file-structures = 0
max-ufs-mounts = 1000
vnode-deallocation-enable = 1
pipe-maxbuf-size = 65536
pipe-single-write-max = -1
pipe-databuf-size = 8192
pipe-max-bytes-all-pipes = 81920000
noadd-exec-access = 0

Does somebody know what parameter should I change to impact the
read/write block size at the file system (Advfs) ?

--
regards, 
 All above opinions are personal, unless stated otherwise.
---------------------------------------------------------------
 Ran Zahor - UNIX System Manager   | Email : ran_at_wiztec.co.il
 Wiztec Solutions Ltd.             | Phone : (972)-9-9526588 
 8 Maskit, Herzlia 46733, Israel   | Fax   : (972)-9-9526556
-----------------http://www.wiztecsolutions.com----------------
Received on Tue Oct 21 1997 - 12:23:41 NZDT

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