May 24, 2012

Post: Aligning IO on a hard disk RAID – the Theory

…, however, relevant with HDD RAID storage – technology we have been using for many years – when there’s … volume. This let’s you avoid any mistakes when working on partition table. RAID stripe Further down below on … using an offset, what stripe size and how many stripe elements. It’s easy to check …

Post: Is disk Everything for MySQL Performance ?

… Paul Tuckfield saying “You should ask how many disks they have instead of how many systems they have” on MySQL UC2008 Scalability Panel ? Indeed disks MAY… same partition as well because this makes it very easy to use LVM for backups while assuming you have BBU on the raid volume impact on

Post: Setting up XFS on Hardware RAID -- the simple edition

RAID setup running conventional HDDs. RAID setup For the sake of simplicity you create one single RAID logical volumehow many sectors fit in a RAID stripe.   65536 / 512 = 128 sectors per stripe. Get start boundary of our mysql partition

Post: MySQL performance on EC2/EBS versus RDS

RAID volume over many EBS volumes, you are more likely to be affected by this, because the more EBS volumeson EC2 machines and EBS RAID volumes under the hood. I have no inside information to share on that speculation, but forpartitioning so all the inserts go into one partition

Post: Aligning IO on a hard disk RAID – the Benchmarks

RAIDpartition size which was slightly over 1TB in size. When I added LVM on top however, I made the logical volumeMySQL configurations, I didn’t try out different MySQL versions or settings. Moreover, I have been running these benchmarks for

Post: RAID and Scale Out Discussions

RAID here. For many workloads you would like to get RAID just for the sake of BBU. As Jeremy mentioned RAIDRAID available which is used for OS hard drive. Indeed using RAID for OS partition (software) is what we use even forRAID for their MySQL installations. I surely agree with Jeremy onvolume

Post: Make your file system error resilient

…. So how can …) Filesystem volume name: Last mounted on: … 128 RAID stride: 8 RAID stripe …for partition you store MySQL data on, as chances are MySQL server is only one doing writes on this partitionon startup which is normally done once per so many mounts or so many days. Large partitions with many