Sponsored Content
Full Discussion: Why is RAID0 faster?
Top Forums UNIX for Dummies Questions & Answers Why is RAID0 faster? Post 302427025 by Corona688 on Thursday 3rd of June 2010 02:02:57 PM
Old 06-03-2010
What do you mean 'the bandwidth on the motherboard is limited'? There's a limit to anything, but if it can keep up with two disks, there will be a benefit.
 

10 More Discussions You Might Find Interesting

1. IP Networking

Mandrake should be faster.

For some reason 8.1 Mandrake Linux seems much slower than Windows 2000 with my cable modem. DSL reports test says they conferable speed with Windows2 though. This is consistant slow with both of my boxes, at the same time. Linux used to be faster, but not with Mandrake. Any way to fix this? (17 Replies)
Discussion started by: lancest
17 Replies

2. Shell Programming and Scripting

Faster then cp ?

Hi , I need to copy every day about 35GB of files from one file system to another. Im using the cp command and its toke me about 25 min. I also tried to use dd command but its toke much more. Is there better option ? Regards. (6 Replies)
Discussion started by: yoavbe
6 Replies

3. Solaris

Solaris RAID0 doubt...

friends, Suppose I am typing metastat command and it is showing: d100: Concat/Stripe Size: 369495 blocks (180 MB) Stripe 0: (interlace: 32 blocks) Device Start Block Dbase Reloc c1d0s0 16065 Yes Yes c1d0s1 0 No Yes... (4 Replies)
Discussion started by: saagar
4 Replies

4. UNIX for Dummies Questions & Answers

Which command will be faster? y?

i)wc -c/etc/passwd|awk'{print $1}' ii)ls -al/etc/passwd|awk'{print $5}' (4 Replies)
Discussion started by: karthi_g
4 Replies

5. Linux

Raid0 recovery from external HD

Hi, I have the Lacie Big Disk, which is a external hard drive enclosure in a hardware RAID0 array of 2x250GB disks. The RAID controller seems to have died, leaving me with 2 working hard drives but no way to get the data. I tried hooking the drives up to a windows machine and using Raid... (4 Replies)
Discussion started by: dangral
4 Replies

6. UNIX for Advanced & Expert Users

live upgrade with raid0 soft partitions

Hi, I have this mirrored system with soft-partitions. I have a difficulty determining the lucreate cmd in this env. #metastat -p d0 -m d10 d20 1 d10 1 1 c1t2d0s0 d20 1 1 c1t3d0s0 d1 -m d11 d21 1 d11 1 1 c1t2d0s5 d21 1 1 c1t3d0s5 d100 -p d1 -o 58720384 -b 8388608 d200 -p d1 -o... (1 Reply)
Discussion started by: chaandana
1 Replies

7. UNIX for Dummies Questions & Answers

Which system is faster?

i'm trying to decide if to move operations from one of these hosts to the other. but i cant decide which one of them is the most powerful. each host has 8 cpus. HOSTA processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 44 model name : Intel(R) Xeon(R) CPU ... (6 Replies)
Discussion started by: SkySmart
6 Replies

8. Hardware

HP9000 Server - Stuck on RAID0

Hey all, I've got an old HP9000 L1000 server with HP-UX installed. The drives that the OS is running on are in RAID0. I am concerned for the reliability of the server. The four hard drives in the front of the server are LVD 18.2 drives. I know with RAID0, if one drive fails, they all fail. ... (2 Replies)
Discussion started by: mroselli
2 Replies

9. Solaris

Cloning RAID0 drives, Solaris 10u11

Hello all, this is my first time posting here. Where I work we have multiple servers (x3-2's) running Solaris 10u11 with 2 drives configured as RAID0, 300GB per. There are 4-6 open slots for drives to clone to. Past attempts to clone/backup these drives has failed. One of the machines is... (1 Reply)
Discussion started by: eprlsguy
1 Replies

10. UNIX for Dummies Questions & Answers

Raid0 array stresses only 1 disk out of 3

Hi there, I've setup a raid0 array of 3 identical disks using : mdadm --create --verbose /dev/md0 --level=stripe --raid-devices=3 /dev/sdb1 /dev/sdc1 /dev/sdd1I'm using dstat to monitor the disk activity : dstat --epoch -D sdb,sdc,sdd --disk-util 30The results show that the stress is not... (8 Replies)
Discussion started by: chebarbudo
8 Replies
vxpfto(1M)																vxpfto(1M)

NAME
vxpfto - set Powerfail Timeout (pfto) SYNOPSIS
vxpfto -g diskgroup -t timeout vxpfto [-g diskgroup] -t timeout volume_list vxpfto [-g diskgroup] -o pftostate={enabled|disabled} vxpfto [-g diskgroup] -o pftostate={enabled|disabled} volume_list DESCRIPTION
Powerfail Timeout is an attribute of a SCSI disk connected to an HP-UX host (see the pfto(7) man page). The vxpfto command sets the Power- fail Timeout interval on a set of Volume Manager disks, either all disks in a disk group, or all disks underlying the volumes listed. The first form of the command sets the same PFTO value for all the disks in the specified VxVM diskgroup. In the second form, all disks underlying the given list of volumes are selected, optionally restricted by the disk group specified with the -g option. If you specify a diskgroup, any volume in the list not belonging to the diskgroup is ignored. Use the -o pftostate option to disable or enable PFTO. By default, PFTO is enabled. You can enable PFTO either on all disks in a disk group, or on all disks underlying the volumes listed. If you invoke vxpfto without arguments, it displays a usage message. OPTIONS
-g diskgroup Specifies the disk group for the operation, either by disk group ID or by disk group name. -o pftostate={enabled|disabled} Enables or disables the use of PFTO for IO. -t timeout Specifies the PFTO value in seconds. The value must be zero or a positive integer. Zero represents the system default PFTO value. The default value depends on the disk driver controlling the disk device. volume_list A list of VxVM volume names. List items must be separated by white-space. EXIT CODES
vxpfto returns a zero if successful. If it encounters an error, vxpfto exits and displays a message on standard error. Defined exit codes are: 0 Success. 1 No PFTO value specified. 2 No diskgroup or volume list specified. 3 Illegal PFTO value specified. EXAMPLES
Set the PFTO value on all disks in disk group testdg to 100 seconds: vxpfto -t 100 -g testdg Set the PFTO value to 50 seconds on all disks underlying volume01 and volume02 in disk group testdg: vxpfto -t 50 -g testdg volume01 volume02 Set the PFTO value to 300 seconds on all disks underlying volume01 and volume02, even though they are not in the same disk group: vxpfto -t 300 volume01 volume02 Disable PFTO on all disks in disk group testdg: vxpfto -g testdg -o pftostate=disabled Enable PFTO on all disks underlying volume01 and volume02i in disk group testdg: vxpfto -g testdg -o pftostate=enabled volume01 volume02 SEE ALSO
vxdisk(1M), pfto(7) VxVM 5.0.31.1 24 Mar 2008 vxpfto(1M)
All times are GMT -4. The time now is 09:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy