Asus M3A78-EMH HDMI User Manual - Page 113

Media Patrol, Current LD Size, Maximum LD, Migration Size, Sector Size

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Chapter 6: Technology Background See the chart below. Current LD Size 8 to 16 TB 4 to 8 TB 2 to 4 TB 0 to 2 TB Maximum LD Migration Size 16 TB 8 TB 4 TB 2 TB Sector Size 4096 bytes 2048 bytes 1024 bytes 512 bytes You can direct RAIDXpert to migrate a logical drive beyond the maximum size. However, when migration is finished, your logical drive will be the maximum size listed in the table. If you require a logical drive larger than the maximum migration size: 1. Backup the data from the current logical drive. 2. Delete the current logical drive. 3. Create a new logical drive with the desired capacity. 4. Restore the data to the new logical drive. Media Patrol Media Patrol is a routine maintenance procedure that checks the magnetic media on each physical drive, sector by sector. Media Patrol checks physical drives assigned to logical drives, spare drives, and currently unassigned physical drives that were once part of a logical drive or a spare. Media Patrol does not check new physical drives that have never been configured. Unlike Synchronization and Redundancy Check, Media Patrol is concerned with the condition of the media itself, not the data recorded on the media. If Media Patrol encounters a suspect sector, it will attempt to regenerate the data and write to the suspect sector. • If the write operation is successful, Media Patrol continues checking other sectors. • If the write operation fails, Media Patrol reports the error to your PC's system log and to the physical drive's Bad Sector Log. The error report to the physical drive's Bad Sector Log triggers a BSL update message and an email message if you enabled that option. To schedule or run Media Patrol, see "Scheduling Media Patrol - All Physical Drives" on page 57 or "Running Media Patrol - One Physical Drive" on page 60. See also "Setting up Event Notification" on page 38 and "Viewing the Physical Drive Bad Sector Log" on page 62. 107

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Chapter 6: Technology Background
107
See the chart below.
You can direct RAIDXpert to migrate a logical drive beyond the maximum size.
However, when migration is finished, your logical drive will be the maximum size
listed in the table.
If you require a logical drive larger than the maximum migration size:
1.
Backup the data from the current logical drive.
2.
Delete the current logical drive.
3.
Create a new logical drive with the desired capacity.
4.
Restore the data to the new logical drive.
Media Patrol
Media Patrol is a routine maintenance procedure that checks the magnetic media
on each physical drive, sector by sector. Media Patrol checks physical drives
assigned to logical drives, spare drives, and currently unassigned physical drives
that were once part of a logical drive or a spare. Media Patrol does not check new
physical drives that have never been configured.
Unlike Synchronization and Redundancy Check, Media Patrol is concerned with
the condition of the media itself, not the data recorded on the media. If Media
Patrol encounters a suspect sector, it will attempt to regenerate the data and
write to the suspect sector.
•
If the write operation is successful, Media Patrol continues checking other
sectors.
•
If the write operation fails, Media Patrol reports the error to your PC's system
log and to the physical drive’s Bad Sector Log.
The error report to the physical drive’s Bad Sector Log triggers a BSL update
message and an email message if you enabled that option.
To schedule or run Media Patrol, see “Scheduling Media Patrol – All Physical
Drives” on page 57 or “Running Media Patrol – One Physical Drive” on page 60.
See also “Setting up Event Notification” on page 38 and “Viewing the Physical
Drive Bad Sector Log” on page 62.
Current LD Size
Maximum LD
Migration Size
Sector Size
8 to 16 TB
16 TB
4096 bytes
4 to 8 TB
8 TB
2048 bytes
2 to 4 TB
4 TB
1024 bytes
0 to 2 TB
2 TB
512 bytes