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docs_in_draft:snapraid [2024/12/11 15:09] – [Prerequisites] crashtest | docs_in_draft:snapraid [2025/02/24 15:17] (current) – crashtest |
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<html><center><span style="color:#b7620b;font-size:300%;">Incomplete Document</span></center></html> | <html><center><span style="color:#b7620b;font-size:300%;">Incomplete Document</span></center></html> |
<html><center><span style="color:#b7620b;font-size:300%;">Not for public use</span></center></html> | <html><center><span style="color:#b7620b;font-size:300%;">Not for public use</span></center></html> |
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Split Parity is a new SnapRAID feature that is supported in OMV7:<br> | Split Parity is a new SnapRAID feature that is supported in OMV7:<br> |
- While the rule, "<i><b>the parity drive must equal or exceed the size of the largest protected data drive</i></b>" still applies; split parity allows combing smaller drives to create what appears to be a single large parity drive.<br> | - While the rule, "<i><b>the parity drive must equal or exceed the size of the largest protected data drive</i></b>" still applies; split parity allows combining smaller drives to create what appears to be a single large parity drive.<br> |
- New users should note that split parity is an advanced feature that increases admin complexity. Split parity configurations are not recommended for users who are not familiar with SnapRAID. | - New users should note that split parity is an advanced feature that increases admin complexity. Split parity configurations are not recommended for users who are not familiar with SnapRAID. |
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**1**. For most users, the defaults in these fields are fine.\\ | **1**. For most users, the defaults in these fields are fine.\\ |
**2**. **Send Mail** will work only if users have configured and tested notifications, as outlined here -> [[https://wiki.omv-extras.org/doku.php?id=omv6:new_user_guide#server_notifications|Server Notifications]]. Configuring Server Notifications and selecting **Send Mail** is highly recommended.\\ | **2**. **Send Mail** will work only if users have configured and tested notifications, as outlined here -> [[https://wiki.omv-extras.org/doku.php?id=omv7:new_user_guide#server_notifications|Server Notifications]]. Configuring Server Notifications and selecting **Send Mail** is highly recommended.\\ |
**3**. **Run Scrub** This is a recommended action to complete the SnapRAID maintenance cycle. While **Diff** and **Sync** run quickly, dependent of the size of protected disks and other factors, **Scrub** may take considerable time.\\ | **3**. **Run Scrub** This is a recommended action to complete the SnapRAID maintenance cycle. While **Diff** and **Sync** run quickly, dependent of the size of protected disks and other factors, **Scrub** may take considerable time.\\ |
**4**. **Pre-hash** is an option that is used together with the** Sync** command. **Pre-hash** assigns a checksum before parity calculations are done. It's an extra safety measure that reads data two times to insure integrity.\\ | **4**. **Pre-hash** is an option that is used together with the** Sync** command. **Pre-hash** assigns a checksum before parity calculations are done. It's an extra safety measure that reads data two times to insure integrity.\\ |
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<html><center><b>Physically remove the drive.</b></center></html> | <html><center><b>Physically remove the drive.</b></center></html> |
<html><center>If necessary, refer to <b>Storage</b>, <b>Disks</b> and compare serial numbers to drive device names under <b>Storage</b>, <b>File Systems</b>. The idea is to look at drive labels and find the serial number that is "missing" (not displayed), to insure that the correct physical drive is removed.</center></html> | <html><center>If necessary, refer to <b>Storage</b>, <b>Disks</b> and compare serial numbers to drive device names under <b>Storage</b>, <b>File Systems</b>. The idea is to look at the drive's physical label and find the serial number that is "missing" (not displayed), to insure that the correct physical drive is removed.</center></html> |
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The result now shows mount points by UUID. Where device names may be reordered on bootup, UUID's do not change.<html><center>\\ | The result now shows mount points by **UUID** (**U**niversally **U**nique **ID**entifier). Where device names may be reordered by BIOS or UEFI on bootup, UUID's do not change.\\ |
Note the "Copy and Paste" Icon{{:OMV6-Plugins-SnapRAID-05-06.jpg?25|}} at the end of each drive UUID. This tool copies exact drive paths and UUID's to the clipboard.\\ | Note the "Copy and Paste" Icon{{:OMV6-Plugins-SnapRAID-05-06.jpg?25|}} at the end of each drive UUID. This tool copies exact drive paths and UUID's to the clipboard.\\ |
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===== Source Code ===== | ===== Source Code ===== |
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-> [[https://github.com/OpenMediaVault-Plugin-Developers/snapraid|Source Code]] | -> [[https://github.com/OpenMediaVault-Plugin-Developers/openmediavault-snapraid|Source Code]] |
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| ===== A Closing Note ===== |
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| We, who support the openmediavault project, hope you’ve found this guide to be useful and that you’ll find your openmediavault server to be efficient, easy to use, and enjoyable.\\ |
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| If you found this plugin guide to be helpful, please consider a modest donation to support the hosting costs of this server.\\ |
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| **OMV-Extras.org** |
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