
Mixed mode (RAID and JBOD)
Mixed mode (RAID and JBOD)
Mixed mode allows for any drive to be a member of a logical drive (logical volume or RAID volume), unconfigured and hidden from the
operating system, or in a JBOD drive state which exposes the drive to the host operating system as a physical drive.
When you power down a controller and insert a new drive and if the inserted drive does not contain valid DDF metadata, the drive
status is listed as JBOD (Just a Bunch of Drives) when you power on the system again. When you power down a controller and insert a
new drive and if the drive contains valid DDF metadata, its drive state is Unconfigured Good. A new drive in the JBOD drive state is
exposed to the host operating system as a standalone drive. You cannot use JBOD drives to create a RAID configuration, because they
do not have valid DDF records. Therefore, you must convert JBOD drives to unconfigured good drives.
The MR Storage Administrator includes options for converting JBOD drives to an unconfigured good drive, or an unconfigured good
drive to a JBOD drive.
Mixed mode (RAID and JBOD)
25
Summary of Contents for MR Gen10 Plus
Page 10: ...Features Features 10 ...
Page 19: ...RAID technologies RAID technologies 19 ...
Page 26: ...Striping Striping 26 ...
Page 28: ...Mirroring Mirroring 28 ...
Page 32: ...Parity Parity 32 ...
Page 45: ...Spare drives Spare drives 45 ...
Page 50: ...Transformation Transformation 50 ...
Page 51: ...Array transformations Array transformations 51 ...
Page 54: ...Logical drive transformations Logical drive transformations 54 ...
Page 58: ...Drive technology Drive technology 58 ...
Page 66: ...Security Security 66 ...
Page 68: ...Simple A Simple erase writes a pattern to the logical drive in a single pass Simple 68 ...
Page 73: ...Reliability Reliability 73 ...
Page 76: ...Performance Performance 76 ...
Page 80: ...Cache Cache 80 ...
Page 98: ...Configuration Configuration 98 ...
Page 106: ...Configuration management Configuration management 106 ...
Page 117: ...Controller management Controller management 117 ...
Page 119: ...Advanced controller management Advanced controller management 119 ...
Page 137: ...Logical drive management Logical drive management 137 ...
Page 143: ...Drive management Drive management 143 ...
Page 155: ...Maintenance Maintenance 155 ...
Page 156: ...System maintenance tools System maintenance tools 156 ...
Page 160: ...Models Models 160 ...
Page 172: ...Support and other resources Support and other resources 172 ...