software raid

It is no secret that I am a pretty big fan of excellent Linux Software RAID. Creating, assembling and rebuilding small array is fine. But, things started to get nasty when you try to rebuild or re-sync large size array. You may get frustrated when you see it is going to take 22 hours to rebuild the array. You can always increase the speed of Linux Software RAID 0/1/5/6 reconstruction using the following five tips.

{ 48 comments }

OpenBSD 4.6 has been released and available for download from the official website. OpenBSD is well known for record of more than ten years with only two remote holes in the default install. The OpenBSD is widely known for the quality open source code and documentation, uncompromising position on software licensing, and focus on security and code correctness.

{ 8 comments }

A redundant array of inexpensive disks (RAID) allows high levels of storage reliability. RAID is not a backup solution. It is used to improve disk I/O (performance) and reliability of your server or workstation. A RAID can be deployed using both software and hardware. But the real question is whether you should use a hardware RAID solution or a software RAID solution.

{ 33 comments }

I’ve already written about changing the I/O scheduler for hard disk under Linux and avoiding sudden outburst of disk I/O using ionice utility. Google has sponsored Gelato@UNSW to take a close look at the disk schedulers in Linux, particularly when combined with RAID. They have now published their findings.

{ 1 comment }

Slackware 12.1 has been released with kernel 2.6.24-5 and available for download.

{ 0 comments }