How to test RAID10 array performance [Debian Wheezy]? Post: 302918537

8 More Discussions You Might Find Interesting

1. Debian

apt-get problems on Wheezy

I am having some troubles with apt-get. I did an apt-get update and an apt-get upgrade. Some dependencies did not download, and so I had to do `apt-get -f install` to fix that. The thing is I get an error about /var/lib/dpkg/available root@hayek:~# apt-get -f install Reading package lists......

2. Shell Programming and Scripting

How do I test the first char of each line in an array

Hi folks, I am self-learning as I can I have a script that has read a file into an array. I can read out each line in the array with the code: for INDEX in {0..$LENGTH} ## $LENGTH was determined at the read in do echo "${data}" done What I need to do is test the first char...

3. Shell Programming and Scripting

[solved] awk: test assoc. array for content

Hi all, I am looking for a quick/short way in awk to check if an associative array has any content. I know I can split() it to an indexed array and check if the 1st element is set, or cycle through it with something like for( ele in arr ), but I want to avoid that, as I am looking for a shorter...

4. Linux

Unload kernel module at boot time (Debian Wheezy 7.2, 3.2.0-4-686-pae kernel)

Hi everyone, I am trying to prevent the ehci_hcd kernel module to load at boot time. Here's what I've tried so far: 1) Add the following line to /etc/modprobe.d/blacklist.conf (as suggested here): 2) Blacklisted the module by adding the following string to 3) Tried to blacklist the module...

5. Shell Programming and Scripting

Bash - array loop performance

Hi, another little question... "sn" is an array whose elements can vary from about 55,000 to about 150,000 elements. Each element consists of an integer between 0-255, eg: ${sn} contain the value: 103 . For a decrypt-procedure I need scroll all the elements 4 or 5 times. Here is an example of...

6. HP-UX

Test cases for file system mount/umount performance in HP

Hi Folks, Could anyone please assist me with the what could be the scenarios to test the file system mount/umount performance check in HPUX. Thanks in advance, Vaishey

7. AIX

Power RAID10 array reconstruct fails ?

Hello, P7 machine PCI Express x8 Planar 3Gb SAS Adapter RAID10 array(2 disks)(not AIX lvm) was configured and working, then one disk failed and IBM support replaced that. Now raid array is degraded, data is not lost. I see new disk model(same as original) serial and etc. What I did trying...

8. Shell Programming and Scripting

If test array element multiplication

Ya, I know, who in this day and age is mirroring rootvg...? But yes, my shop does and I need to script checking for it. I also know I could just inverse the the logic and call the LV mirrored if the LPs and PPs were not equal. But I want to do the math in the if test and also know I could...

LEARN ABOUT DEBIAN

4s-backend-setup

4S-BACKEND_SETUP(1J)						      4store						      4S-BACKEND_SETUP(1J)

NAME

     4s-backend-setup -- Create a new 4store KB

SYNOPSIS

     4s-backend-setup kbname [--node node-number] [--cluster cluster-size] [--segments segment-count] kb-name

		      --node  Number of this node in the cluster, values range from 0 to cluster-size - 1.  The default is 0.

		      --cluster
			      The number of nodes in the cluster.  The default is 1.

		      --segments
			      The number of segments in the cluster. The default is 2. We recommend one for each CPU core in the cluster as a good
			      starting point. Higher numbers tend to consume more resources, but may result in increased performance.

NOTES

     Once crated with 4s-backend-setup KBs should be started with 4s-backend(1)

SEE ALSO

     4s-query(1), 4s-size(1), 4s-httpd(1), 4s-backend(1), 4s-delete-model(1)

EXAMPLES

     $ 4s-backend-setup --node 0 --cluster 1 --segments 4 demo

     Creates the indexes for a single-machine KB with four segments, named "demo".

4store								   May 31, 2019 							    4store