Change to this directory, and execute: It is best to use iozone or any similar utility. For performance, it is best to put each hard drive on its own controller. Use these for systems using 2. So far, I haven’t had any luck duplicating this problem.
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There are newer versions. The following list of controllers are supported by cciss on distributions based on kernels before 2. RAID-5 performance is known for its multiple writes and high write throughput, but it has poor read throughput.
HP Smart Array CCISS driver
Last updated Tue Oct 16, latest version is 2. Last updated March 4, latest version is 4.
This is simply because making the switch is somewhat complex and it is easy to make a mistake or forget something and get your system into an unbootable state. Most likely, you do not need these, as the cciss driver has been in the Linux kernel for a very long time, and most distributions will already have a cciss driver which will work for you as is. The system would panic when deleting many logical volumes at one time.
As stated read performance seems very poor to me, because all data should be send from cache which means there should be nearly no differences between buffered or cached reads. This page does not infer official support from HP. Hosting provided by Metropolitan Area Network Darmstadt. It measures throughput based on real world tests.
Instructions on Installing drivers for smart array 6i on hp dl g4
Here are the controller updates. No longer spins up idle spare drives. See these search results from hp. On booting I found the message “modprobe: Ubuntu is meant for desktops and workstations.
Last updated March 4, latest version is 3. This program is licensed under the Gnu GPL v. It takes in the order of about 3hrs 30mins. See the “st” man page for more details. Fixed wrong usage of a pointer for sysfs symlink.
The most “recent” update for that server and controller combination is from July There may be other software designed to work with cciss e.
X tarballs Last updated November 01,latest version is 3.
HP ProLiant Servers
I would suggest disabling hardware raid and setting up software raid or no raid at all until the driver makes its way on the Linux Kernel, if it ever does. I’ll check also one of our machine, to see if i can reproduce this behavior or not. This book contains many real life examples derived from the author’s experience as a Linux system and network administrator, trainer and consultant.
I have heard of dump? Updates for kdump support Changes since 3. As stated check the battery pack for the controller cache, mostly they will die after 3 years. If you need to reset your password, click here. Now i’ve read that the tape drive’s data rate matching finally a good DRM!
The installer will detect the absence of this firmware and prompt you for it at install-time. Home Questions Tags Users Unanswered.