Filesystem choice
Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr
Re: Filesystem choice
Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
Re: Filesystem choice
If what you are looking for is performance optimization, you might want to consider: http://dev.mysql.com/doc/refman/5.5/en/innodb-raw-devices.html - michael dykman On Tue, Feb 7, 2012 at 1:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
Re: Filesystem choice
Hi, Check these: http://www.enterprisestorageforum.com/storage-hardware/test-plan-for-linux-file-system-fsck-testing.html http://www.enterprisestorageforum.com/sans/features/article.php/3749926 http://www.enterprisestorageforum.com/storage-hardware/the-state-of-file-systems-technology-problem-statement.html http://www.enterprisestorageforum.com/storage-technology/the-future-of-storage-devices-and-tiering-software.html http://www.enterprisestorageforum.com/storage-hardware/linux-file-system-fsck-testingthe-results-are-in.html Regards Sameh Attia -- - Failure is not an option; it is a built-in feature in Windows. - The two basic principles of system administration: * For minor problems, reboot * For major problems, reinstall dc -e '603178305900664311156641389051003470569569613466992253686426210705237258P' On Tue, Feb 7, 2012 at 8:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
Re: Filesystem choice
I highly recommend against Raw Devices.. You're extremely limiting your backup options in this case.. S On Tue, Feb 7, 2012 at 13:39, Michael Dykman mdyk...@gmail.com wrote: If what you are looking for is performance optimization, you might want to consider: http://dev.mysql.com/doc/refman/5.5/en/innodb-raw-devices.html - michael dykman On Tue, Feb 7, 2012 at 1:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql -- Pythian proud winner of Oracle North America Titan Award for Exadata Solution...watch the video on pythian.com
Re: Filesystem choice
In the case of using raw devices (which I'm not really sold on in general, but there are cases when performance is all), we ran our backups from a slave replica. On Tue, Feb 7, 2012 at 1:42 PM, Sameh Attia sat...@gmail.com wrote: Hi, Check these: http://www.enterprisestorageforum.com/storage-hardware/test-plan-for-linux-file-system-fsck-testing.html http://www.enterprisestorageforum.com/sans/features/article.php/3749926 http://www.enterprisestorageforum.com/storage-hardware/the-state-of-file-systems-technology-problem-statement.html http://www.enterprisestorageforum.com/storage-technology/the-future-of-storage-devices-and-tiering-software.html http://www.enterprisestorageforum.com/storage-hardware/linux-file-system-fsck-testingthe-results-are-in.html Regards Sameh Attia -- - Failure is not an option; it is a built-in feature in Windows. - The two basic principles of system administration: * For minor problems, reboot * For major problems, reinstall dc -e '603178305900664311156641389051003470569569613466992253686426210705237258P' On Tue, Feb 7, 2012 at 8:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
Re: Filesystem choice
Micheal, I have the feeling that no one on this planet uses raw devices with mysql, I might be wrong but I think InnoDB is kind of 'optimized' to leverage the filesystem facilities, but I would really like an InnoDB expert opinion here. Claudio 2012/2/7 Michael Dykman mdyk...@gmail.com In the case of using raw devices (which I'm not really sold on in general, but there are cases when performance is all), we ran our backups from a slave replica. On Tue, Feb 7, 2012 at 1:42 PM, Sameh Attia sat...@gmail.com wrote: Hi, Check these: http://www.enterprisestorageforum.com/storage-hardware/test-plan-for-linux-file-system-fsck-testing.html http://www.enterprisestorageforum.com/sans/features/article.php/3749926 http://www.enterprisestorageforum.com/storage-hardware/the-state-of-file-systems-technology-problem-statement.html http://www.enterprisestorageforum.com/storage-technology/the-future-of-storage-devices-and-tiering-software.html http://www.enterprisestorageforum.com/storage-hardware/linux-file-system-fsck-testingthe-results-are-in.html Regards Sameh Attia -- - Failure is not an option; it is a built-in feature in Windows. - The two basic principles of system administration: * For minor problems, reboot * For major problems, reinstall dc -e '603178305900664311156641389051003470569569613466992253686426210705237258P' On Tue, Feb 7, 2012 at 8:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql -- Claudio
Re: Filesystem choice
Thank you for that Claudio. To be fair, we studied them a few years ago for a high-traffic website we were migrating from 4.0 to 5.0. The proof-of-concept was sound and tested well but concerns from the sysadmin team kept that model from going to production. Again, I did not mean that to appear to be a recommendation, just an item on the checklist to consider if performance-at-all-costs is the goal. - michael dykman On Tue, Feb 7, 2012 at 3:19 PM, Claudio Nanni claudio.na...@gmail.com wrote: Micheal, I have the feeling that no one on this planet uses raw devices with mysql, I might be wrong but I think InnoDB is kind of 'optimized' to leverage the filesystem facilities, but I would really like an InnoDB expert opinion here. Claudio 2012/2/7 Michael Dykman mdyk...@gmail.com In the case of using raw devices (which I'm not really sold on in general, but there are cases when performance is all), we ran our backups from a slave replica. On Tue, Feb 7, 2012 at 1:42 PM, Sameh Attia sat...@gmail.com wrote: Hi, Check these: http://www.enterprisestorageforum.com/storage-hardware/test-plan-for-linux-file-system-fsck-testing.html http://www.enterprisestorageforum.com/sans/features/article.php/3749926 http://www.enterprisestorageforum.com/storage-hardware/the-state-of-file-systems-technology-problem-statement.html http://www.enterprisestorageforum.com/storage-technology/the-future-of-storage-devices-and-tiering-software.html http://www.enterprisestorageforum.com/storage-hardware/linux-file-system-fsck-testingthe-results-are-in.html Regards Sameh Attia -- - Failure is not an option; it is a built-in feature in Windows. - The two basic principles of system administration: * For minor problems, reboot * For major problems, reinstall dc -e '603178305900664311156641389051003470569569613466992253686426210705237258P' On Tue, Feb 7, 2012 at 8:31 PM, List Man list@bluejeantime.com wrote: Ext4 is faster to me. LS - Original Message - From: rickytato rickytato rickyt...@r2consulting.it To: mysql@lists.mysql.com Sent: Tuesday, February 7, 2012 1:19:32 PM Subject: Filesystem choice Hi, I'm my new server I've to decided what filesystem to used. The server are dual amd six core 2.4GHz, 32GB ram, and 4x 300GB SAS 15krpm raid10 with perc700 512MB raid controller. I've to chosse between xfs and ext4; ext4 with noatime,nodiratime,data=writeback,barrier=0,nobh,commit=100,errors=remount-ro and formatted with -b 4096 -E stride=16,stripe-width=32 is right choice or nobarrier is too unsafe? Only for mysql partition, non for the root. rr -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql -- Claudio -- - michael dykman - mdyk...@gmail.com May the Source be with you. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql
