2
votes
1answer
72 views

When I mount an XFS snapshot that was frozen, do I need to unfreeze it?

I'm snapshotting an XFS EBS volume, freezing it first. When I mount the snapshot as a new volume on a different instance will I need to unfreeze the volume before it can be used, or will it not be ...
1
vote
1answer
124 views

Are there measurable benefits to running XFS on EC2

I am looking at creating a PostgreSQL database image (to run on Amazon EC2) and I have heard good things about XFS. However, since ultimately you are running in a VM, the gain of XFS on EC2 might ...
2
votes
3answers
832 views

EBS+RAID10+XFS slower than EBS+RAID10+EXT3 using MySQL?

We're currently using EC2 with 16 EBS volumes in RAID10 configuration for our MySQL data. I know some people don't recommend to put EBS volumes to RAID but that's not what I'm concerned about at the ...
1
vote
1answer
1k views

Converting Amazon EC2 ext4 EBS volume into XFS filesystem

I need to convert my Amazon EC2 ext4 filesystem into a XFS one so I could take consistent snapshots and send them to S3. I'm using custom small image of ubuntu server 10.10 with i686 architecture in ...
0
votes
1answer
357 views

Why can't xfs_freeze find this directory when called with ec2-consistent-snapshot?

On my management server: /usr/bin/ec2-consistent-snapshot --freeze-filesystem /mnt/websites --description "FOO-DATA $(date)" vol-d84bhi64 --region eu-west-1 /mnt/websites: No such file or directory ...
0
votes
1answer
507 views

How should I setup an Ubuntu server on EC2 (MySQL, code location, etc..)?

I've started to fiddle around EC2, and I can't seem to understand the "AWS way" of setting up a server. I'm using Ubuntu server 10.10 64 bit, from an official AMI by Canonical. There is an EBD drive ...
-2
votes
2answers
352 views

is xfs a good raid setup?

I'm using amazon, and there is docs everywhere to use xfs. Is xfs a software based raid? Is it fast?
1
vote
1answer
603 views

What XFS configuration should I use for EC2 disks (mysql db-server)

To be able to use ec2-consistent-snapshot on my EC2 servers I have decided to make my partition for my database data XFS What are the best XFS configuration options I can use for these disk? The disk ...
1
vote
1answer
785 views

Very Slow Sequential Reads over NFS from an XFS disk in Amazon EC2

I am using tiobench to test performance of an NFS mounted volume, and notice that Sequential Reads are much slower than Random Reads. This isn't the behavior when I run the same test on the disk ...
2
votes
3answers
2k views

Ubuntu 9.10 cron script 'ec2-consistent-snapshot' unable to execute and access files

I have a Ubuntu 9.10 image running on Amazon EC2 and I've setup a backup script ec2-consisten-snapshot. I'm able to run the script from SSH, and everything works peachy. sudo ec2-consistent-snapshot ...
0
votes
2answers
526 views

best filesystem for mysql @ net-volume @ ec2

What is the best filesystem to use for EC2 network volume to be used for mysql database? And what mount options to use? Specifically is there a better option then xfs +noatime? This is the option I ...