Does putting the XFS log on an SSD significantly improve performance?

Posted by Paul Wagland on Server Fault See other posts from Server Fault or by Paul Wagland
Published on 2010-05-11T20:57:50Z Indexed on 2010/05/11 21:04 UTC
Read the original article Hit count: 296

Filed under:

ssd

|

xfs

I have a five disk array running XFS in RAID5, and I would like to improve it's performance. I have seen some hints that putting the log onto a separate device can help, does putting the log onto an SSD help dramtically?

In theory, it should, but I have not been able to find any case studies where someone has actually done this, and buying an SSD and then having it not work well would be inconvenient at best…

© Server Fault or respective owner

Related posts about ssd

SSD -- Special settings for SSD as secondary drive?

as seen on Super User - Search for 'Super User'
Hello all, I recently purchased an Intel SSD (X25-V 40GB) and I want to add it to my PC as a secondary drive (not the boot/system drive) so I can install specific software to it. Now, do I need to do anything special to ensure long life and peak performance with this as a secondary drive? I have… >>> More
Internal drives vs USB-3 with external SSD or eSata with External SSD

as seen on Super User - Search for 'Super User'
I have a need to carry VMWare Virtual Machines with me for work. These are very large files (each VM is 20GB or more) and I carry around about 40 to 50 VM's to simulate different software configurations for different client needs. Key: they won't fit on the internal hard drive of my current laptop… >>> More
"Windows detected a hard drive" issue in Windows 7 x64

as seen on Super User - Search for 'Super User'
I upgraded to the OCZ-Agility3 120GB from a 60 OCZ Vertex2 SSD. I cloned the drive from the Vertex to the new Agility. Everything seemed to have gone well and have not had any problems. Recently in the passed month I have gotten this error: I downloaded teh OCZToolboxMP and ran the SMART utility… >>> More
Disable SSD in ASUS 900 running Ubuntu 9.10

as seen on Super User - Search for 'Super User'
Recently I managed to completely mess up my ASUS 900, but I have no immediate desire to upgrade since it's only my travel laptop (and I'm waiting for a few months to see if anything interesting comes out). For now, though, I've hit an interesting problem. The 4GB SSD that is soldered onto the motherboard… >>> More
NTFS journal on different (SSD) disk

as seen on Server Fault - Search for 'Server Fault'
Some advanced file systems, like ZFS have the option of using SSD disks as a second level cache for the file system or for the journal. Is this possible with NTFS? >>> More

Related posts about xfs

XFS and loss of data when power goes down

as seen on Super User - Search for 'Super User'
Each time electricity goes down, my desktop (without UPS) loses some temporary information. Opera can lose settings, history, cache, or mail accounts (Thanks heavens I was wise to use IMAP). Partially or all together. a whole file (complete and save) in Geany appeared empty (and I didn't commit… >>> More
ZFS vs XFS

as seen on Server Fault - Search for 'Server Fault'
We're considering building a ~16TB storage server. At the moment, we're considering both ZFS and XFS as filesystem. What are the advantages, disadvantages? What do we have to look for? Is there a third, better option? >>> More
changing filesystem format from xfs to ext4 without losing data

as seen on Server Fault - Search for 'Server Fault'
I have a fresh Lucid Lynx (Ubuntu 10.04) running on a laptop. where I defined the filesystems as: mount point / on ext4 (46 Gb) mount point /home on jfs (63 GB) swap as 3 Gb I left the machine over night to do some task, without AC power supply. next day in the morning I found it on standby, task… >>> More
Trying to determine the correct number of XFS allocation groups for postgresql server on Linux

as seen on Server Fault - Search for 'Server Fault'
I am running a postgres 8.4.5 server on the linux 2.6.33.7 kernel on an 8 disk raid array with an LSI controller. Most of the tables are around 1GB or less. I know that XFS uses allocation groups (AG) to achieve I/O parallelism. My first question is, does this mean that if two tables are in the… >>> More
How decode xfs lost+found directory

as seen on Server Fault - Search for 'Server Fault'
I have managed to trash my homebrew Nas box (an old hp d530 + 2x 750gb sata soft raid1 + 17gb boot disk with ubuntu server 8.10) I have searched the web and tried to repair the file system but to no avail :( I was thinking that the dirs/files located under the root of the lost+found directory are… >>> More