Re: Cyrus IMAP running in linux: recommended file system

2010-12-17 Thread Andre Felipe Machado
Hello, In addition to my last message, you could test performance using the Allocation Group size = 4GB, your users' email quota. As XFS deals with AG as something like filesystems inside the filesystem, the account activity will be contained at that AG, during parallel iops. As each AG implies a

Re: Cyrus IMAP running in linux: recommended file system

2010-12-17 Thread Andre Felipe Machado
Hello, We used ext3 for years at cyrus servers (even tuned them a lot [0]), then changed to XFS **aggressively tuned for small files** [0] and are being happy with it. But we are using plenty ram and cores servers and tuned SAN FC storage and now even a tuned custom WAFL SAN FC storage, with lvm. A

Re: Cyrus IMAP running in linux: recommended file system

2010-12-16 Thread David Lang
On Fri, 17 Dec 2010, Bron Gondwana wrote: > On Thu, Dec 16, 2010 at 06:09:58PM -0800, David Lang wrote: >> On Thu, 16 Dec 2010, Lucas Zinato Carraro wrote: >> >>> I know that this question is controversy and there is no exact answer. >>> >>> But currently what is the best file system in Linux to

Re: Cyrus IMAP running in linux: recommended file system

2010-12-16 Thread Bron Gondwana
On Thu, Dec 16, 2010 at 06:09:58PM -0800, David Lang wrote: > On Thu, 16 Dec 2010, Lucas Zinato Carraro wrote: > > > I know that this question is controversy and there is no exact answer. > > > > But currently what is the best file system in Linux to handle > > thousands of small files? > > I ha

Re: Cyrus IMAP running in linux: recommended file system

2010-12-16 Thread David Lang
On Thu, 16 Dec 2010, Lucas Zinato Carraro wrote: > I know that this question is controversy and there is no exact answer. > > But currently what is the best file system in Linux to handle > thousands of small files? > I have mailboxes with 4Gb. And messages with ~4Kb. > Ext4 ? depending on who

Re: Cyrus IMAP running in linux: recommended file system

2010-12-16 Thread Patrick Boutilier
On 12/16/2010 09:37 PM, Lucas Zinato Carraro wrote: > I know that this question is controversy and there is no exact answer. > > But currently what is the best file system in Linux to handle > thousands of small files? > I have mailboxes with 4Gb. And messages with ~4Kb. > Ext4 ? We are using ex

Cyrus IMAP running in linux: recommended file system

2010-12-16 Thread Lucas Zinato Carraro
I know that this question is controversy and there is no exact answer. But currently what is the best file system in Linux to handle thousands of small files? I have mailboxes with 4Gb. And messages with ~4Kb. Ext4 ? Thanks in advance Zinato Cyrus Home Page: http://www.cyrusimap.org/ Lis