Changes for page ZFS Administration - Part III - The ZFS Intent Log

on 2024-09-01 09:30


on 2024-09-01 09:29
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... ... @@ -67,8 +67,7 @@ 67 67 logs 68 68 mirror-1 ONLINE 0 0 0 69 69 ata-OCZ-REVODRIVE_OCZ-69ZO5475MT43KNTU-part1 ONLINE 0 0 0 70 - ata-OCZ-REVODRIVE_OCZ-9724MG8BII8G3255-part1 ONLINE 0 0 0 71 -{{/code}} 70 + ata-OCZ-REVODRIVE_OCZ-9724MG8BII8G3255-part1 ONLINE 0 0 0{{/code}} 72 72 73 73 == SLOG Life Expectancy == 74 74 ... ... @@ -101,8 +101,7 @@ 101 101 mirror 1.46M 3.72G 20 0 285K 0 102 102 ata-OCZ-REVODRIVE_OCZ-69ZO5475MT43KNTU-part1 - - 20 0 285K 0 103 103 ata-OCZ-REVODRIVE_OCZ-9724MG8BII8G3255-part1 - - 20 0 285K 0 104 ------------------------------------------------- ----- ----- ----- ----- ----- ----- 105 -{{/code}} 103 +------------------------------------------------ ----- ----- ----- ----- ----- -----{{/code}} 106 106 107 107 == Conclusion == 108 108 ... ... @@ -109,7 +109,6 @@ 109 109 A fast SLOG can provide amazing benefits for applications that need lower latencies on synchronous transactions. This works well for database servers or other applications that are more time sensitive. However, there is increased cost for adding a SLOG to your pool. The battery-backed DRAM chips are very, very expensive. Usually on the order of $2,500 per 8 GB of DDR3 DIMMs, where a 40 GB MLC SSD can cost you only $100, and a 600 GB 15k SAS drive is $200. Again though, capacity really isn't an issue, while performance is. I would go for faster IOPS on the SSD, and a smaller capacity. Unless you want to partition it, and share the L2ARC on the same drive, which is a great idea, and something I'll cover in the next post. 110 110 111 111 ---- 112 - 113 113 (% style="text-align: center;" %) 114 114 Posted by Aaron Toponce on Thursday, December 6, 2012, at 6:00 am. 115 115 Filed under [[Debian>>url:https://web.archive.org/web/20210430212906/https://pthree.org/category/debian/]], [[Linux>>url:https://web.archive.org/web/20210430212906/https://pthree.org/category/linux/]], [[Ubuntu>>url:https://web.archive.org/web/20210430212906/https://pthree.org/category/ubuntu/]], [[ZFS>>url:https://web.archive.org/web/20210430212906/https://pthree.org/category/zfs/]]. ... ... @@ -116,9 +116,8 @@ 116 116 Follow any responses to this post with its [[comments RSS>>url:https://web.archive.org/web/20210430212906/https://pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/feed/]] feed. 117 117 You can [[post a comment>>url:https://web.archive.org/web/20210430212906/https://pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/#respond]] or [[trackback>>url:https://web.archive.org/web/20210430212906/https://pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/trackback/]] from your blog. 118 118 For IM, Email or Microblogs, here is the [[Shortlink>>url:https://web.archive.org/web/20210430212906/https://pthree.org/?p=2592]]. 119 - 120 120 ---- 121 121 122 122 {{box title="**Archived From:**"}} 123 -[[https:~~/~~/web.archive.org/web/20210430212 906/https:~~/~~/pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/>>https://web.archive.org/web/20210430212906/https://pthree.org/2012/12/06/zfs-administration-part-iii-the-zfs-intent-log/]]119 +[[https:~~/~~/web.archive.org/web/20210430213532/https:~~/~~/pthree.org/2012/12/04/zfs-administration-part-i-vdevs/>>https://web.archive.org/web/20210430213532/https://pthree.org/2012/12/04/zfs-administration-part-i-vdevs/]] 124 124 {{/box}}