How to resolve RAID critical status - HighPoint Global …€¦ ·...
Transcript of How to resolve RAID critical status - HighPoint Global …€¦ ·...
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How to Resolve a Critical RAID Status
Release Date: May 29, 2012
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1. Understand the meaning of a critical RAID status When the status of a RAID array becomes “Critical” it means your redundant RAID (RAID level 1, 5, 6, 10 or 50) is running on the degrade mode. Your data is accessible but the RAID array is vulnerable. Note: The “Critical” status will need to be resolved immediately. There are two methods to view and check the RAID Array detail information:
a. First -‐ During system POST, you can enter the RocketRAID BIOS with the hotkey ctrl-‐h and check the array Status.
b. Second -‐ Using the Web RAID Management Software (WebGUI) click on the Logical tab, then the Status of the RAID.
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2. Critical RAID Array status messages a. When an array is missing one or more disk members.
View by BIOS
(This RAID 5 Array is missing one disk member 4#)
View by WebGUI
(This RAID1 Array is missing one disk member)
(This RAID6 Array missing two disk members)
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Note: An array with a critical status means there is a Missing / Offline disk member and the disk is not detected by the RAID controller. It is recommended that you check the connection of the SATA/SAS cable (Power and Data) before doing anything else. An unstable power supply or enclosure will cause the disk to not work. Try switching the power connector or the disk bay of the enclosure can help to identify the issue. If the original Missing (/Offline) disk member cannot be re-‐detected after you resolved SATA/SAS cable or enclosure issue, please follow below section “RAID Member is required to rebuilt”. If the Missing (/Offline) disk is dead you will have to add a new disk to the RAID array that is the same or of larger capacity. It is recommended to using the same model new disk to replace the bad one. After replacing the bad disk with a new one, boot to OS and follow below steps to rebuild the critical RAID array:
i. Log-‐in WebGUI > ii. Switch to the “Logical” tab > iii. Click the “Maintenance” Link > iv. Click the “Add Disk” button of the popup menu>
v. Select the new disk and click the “Submit” button.
vi. Keep checking the Array rebuilding percentage and wait for 100% completed.
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Note: For a non-‐IOP products (RocketRAID 1xxx or 2xxx), the rebuilding or other background task can only be run under OS using the web RAID GUI.
b. One of the RAID members required to be rebuilt. View from BIOS
(2-‐b-‐1: RAID5 member 4# required to be rebuilt) View from WebGUI > Array Maintenance
(2-‐b-‐2: RAID5 member-‐disk icon marked with a lock is required to be rebuilt)
When you meet the critical status, please follow below steps to resolve the issue:
i. Booting up OS ii. Install and run the hptsvr program of the WebGUI iii. Log-‐in WebGUI iv. Switch to the Logical tab v. Check the Array rebuilding percentage and wait for 100% completed.
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c. RAID5 or RAID6 required parity-‐rebuild. Array status show critical but all the Member disks show Normal status.
When you meet the critical status, you should install and run the hptsvr program of the WebGUI to start rebuild the RAID.
d. Array require rebuilt.
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(2-‐d-‐1: RAID1 array icon is required rebuilt)
When you meet the critical status, please follow below steps: i. Click “Maintenance” link. ii. Click “rebuild” button of the popup menu and star rebuilding iii. Keep checking the Array rebuilding percentage and wait for 100% completed.
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3. Auto Rebuilding with SPARE HDD When the status of a RAID array becomes “Critical” it means your redundant RAID (RAID level 1, 5, 6, 10 or 50) is running on the degrade mode. Rebuilding or repairing the critical RAID can be automatically started when a SPARE HDD is configured. As soon as the RAID becomes critical the SPARE HDD will be used to repair the degraded RAID array. Rebuild times vary depending the total size of the RAID array.
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4. Enable Auto Rebuilding When the status of a RAID array becomes “Critical” it means your redundant RAID (RAID level 1, 5, 6, 10 or 50) is running on the degrade mode. Rebuilding or repairing the critical RAID can be automatically started when the option Enable Auto Rebuild is enabled. When a new HDD is added to the RocketRAID controller the new HDD will help to rebuild the critical RAID array.. Rebuild times vary depending the total size of the RAID array.