Displaying 6 results from an estimated 6 matches for "128kbyte".
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128byte
2011 Jan 17
2
Question on how to get Samba to use larger pread/write calls.
...rface but it should be capable of
400-500MBytes/sec. We have a local raid
on the FC13 system that runs 1GByte/sec locally
using an Areca 1880-ix-16 raid card (6Gbit version).
It has 16 fast Hitachi disks in a Raid5 format
using xfs filesystem.
The problem here is that samba is poking the Areca
at 128KByte I/O's on preads and writes, i.e.
shown to us using strace on the smbd daemons
that are running. Using vmstat/iostat/sar utilities,
we see 100% utilization of the Areca card because the
average wait time is real high and the average
queue length to it is also high......too many
small I/O's....
2006 Nov 03
27
# devices in raidz.
for s10u2, documentation recommends 3 to 9 devices in raidz. what is the
basis for this recommendation? i assume it is performance and not failure
resilience, but i am just guessing... [i know, recommendation was intended
for people who know their raid cold, so it needed no further explanation]
thanks... oz
--
ozan s. yigit | oz at somanetworks.com | 416 977 1414 x 1540
I have a hard time
2006 May 19
3
Oracle on ZFS vs. UFS
Hi,
I''m preparing a personal TPC-H benchmark. The goal is not to measure or
optimize the database performance, but to compare ZFS to UFS in similar
configurations.
At the moment I''m preparing the tests at home. The test setup is as
follows:
. Solaris snv_37
. 2 x AMD Opteron 252
. 4 GB RAM
. 2 x 80 GB ST380817AS
. Oracle 10gR2 (small SGA (320m))
The disks also contain the OS
2003 Mar 14
4
Am I getting the best performance?
Okay, I've been chasing performance for a while now. I have no idea if I
should be trying to get better performance or if I'm getting all I can out
of my hardware. Here is the information:
/sbin/hdparm -I /dev/hdd
/dev/hdd:
ATA device, with non-removable media
Model Number: ST328040A
Serial Number: 7BY034XB
Firmware Revision: 3.07
Standards:
2007 Sep 11
7
compression=on and zpool attach
I''ve got 12Gb or so of db+web in a zone on a ZFS filesystem on a mirrored zpool.
Noticed during some performance testing today that its i/o bound but
using hardly
any CPU, so I thought turning on compression would be a quick win.
I know I''ll have to copy files for existing data to be compressed, so
I was going to
make a new filesystem, enable compression and rysnc everything in,
2010 Jun 07
20
Homegrown Hybrid Storage
Hi,
I''m looking to build a virtualized web hosting server environment accessing
files on a hybrid storage SAN. I was looking at using the Sun X-Fire x4540
with the following configuration:
- 6 RAID-Z vdevs with one hot spare each (all 500GB 7200RPM SATA drives)
- 2 Intel X-25 32GB SSD''s as a mirrored ZIL
- 4 Intel X-25 64GB SSD''s as the L2ARC.
-