MegaCLI / MegaRAID Drive GroupsMegaCLI causes drive “Other Error”How to create Raid 10 with megacliExpand Raid 10 set on MegaRAID LSI 9261-8iLSI MegaRAID SAS 9261-8i: Disk isn't recognized after replacementRAID level confusion (MegaCli vs megasasctl output)How does LSI MegaRAID actually lay out RAID10 sets?MegaCli reports an inconsistent number of physical disksMegaRAID Controller HDD Not SupportedMegaRAID/megacli - Mixed RAID on same disksLSI MegaRAID reports bad drive but SMART status is good
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MegaCLI / MegaRAID Drive Groups
MegaCLI causes drive “Other Error”How to create Raid 10 with megacliExpand Raid 10 set on MegaRAID LSI 9261-8iLSI MegaRAID SAS 9261-8i: Disk isn't recognized after replacementRAID level confusion (MegaCli vs megasasctl output)How does LSI MegaRAID actually lay out RAID10 sets?MegaCli reports an inconsistent number of physical disksMegaRAID Controller HDD Not SupportedMegaRAID/megacli - Mixed RAID on same disksLSI MegaRAID reports bad drive but SMART status is good
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In the MegaRAID SAS Software User Guide it is stated that a Drive Group includes one or more virtual drives. An excerpt from the document is:
"A virtual drive is a partition in a drive group that is made up of contiguous data segments on the drives. A virtual drive can consist of these components:
- an entire drive group
- more than one entire drive group
- a part of a drive group
- parts of more than one drive group
- a combination of any two of these conditions."
My first question is the following: How can I create a drive group and inside that group have more than one virtual drive ?
In the User Guide there is just one relevant command, regarding drive groups. The guide says that this command creates a new drive group:
MegaCli –CfgLDAdd -RX[E0:S0,E1:S1,...] [WT | WB] [NORA | RA] [Direct |
Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM]
[-Hsp[E0:S0,...]] [-AfterLdX] | -Force [FDE|CtrlBased] [-Cache] [-enblPI
-val] -aN
In my opinion, running this command does not create a drive group.
My second question: Is a RAID Array the same thing as a Drive Group, in MegaRAID ?
I am assuming they are the same thing.
What I actually want to achieve is to create a RAID Array , and in that array more than one virtual volumes.
megaraid megacli
add a comment |
In the MegaRAID SAS Software User Guide it is stated that a Drive Group includes one or more virtual drives. An excerpt from the document is:
"A virtual drive is a partition in a drive group that is made up of contiguous data segments on the drives. A virtual drive can consist of these components:
- an entire drive group
- more than one entire drive group
- a part of a drive group
- parts of more than one drive group
- a combination of any two of these conditions."
My first question is the following: How can I create a drive group and inside that group have more than one virtual drive ?
In the User Guide there is just one relevant command, regarding drive groups. The guide says that this command creates a new drive group:
MegaCli –CfgLDAdd -RX[E0:S0,E1:S1,...] [WT | WB] [NORA | RA] [Direct |
Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM]
[-Hsp[E0:S0,...]] [-AfterLdX] | -Force [FDE|CtrlBased] [-Cache] [-enblPI
-val] -aN
In my opinion, running this command does not create a drive group.
My second question: Is a RAID Array the same thing as a Drive Group, in MegaRAID ?
I am assuming they are the same thing.
What I actually want to achieve is to create a RAID Array , and in that array more than one virtual volumes.
megaraid megacli
add a comment |
In the MegaRAID SAS Software User Guide it is stated that a Drive Group includes one or more virtual drives. An excerpt from the document is:
"A virtual drive is a partition in a drive group that is made up of contiguous data segments on the drives. A virtual drive can consist of these components:
- an entire drive group
- more than one entire drive group
- a part of a drive group
- parts of more than one drive group
- a combination of any two of these conditions."
My first question is the following: How can I create a drive group and inside that group have more than one virtual drive ?
In the User Guide there is just one relevant command, regarding drive groups. The guide says that this command creates a new drive group:
MegaCli –CfgLDAdd -RX[E0:S0,E1:S1,...] [WT | WB] [NORA | RA] [Direct |
Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM]
[-Hsp[E0:S0,...]] [-AfterLdX] | -Force [FDE|CtrlBased] [-Cache] [-enblPI
-val] -aN
In my opinion, running this command does not create a drive group.
My second question: Is a RAID Array the same thing as a Drive Group, in MegaRAID ?
I am assuming they are the same thing.
What I actually want to achieve is to create a RAID Array , and in that array more than one virtual volumes.
megaraid megacli
In the MegaRAID SAS Software User Guide it is stated that a Drive Group includes one or more virtual drives. An excerpt from the document is:
"A virtual drive is a partition in a drive group that is made up of contiguous data segments on the drives. A virtual drive can consist of these components:
- an entire drive group
- more than one entire drive group
- a part of a drive group
- parts of more than one drive group
- a combination of any two of these conditions."
My first question is the following: How can I create a drive group and inside that group have more than one virtual drive ?
In the User Guide there is just one relevant command, regarding drive groups. The guide says that this command creates a new drive group:
MegaCli –CfgLDAdd -RX[E0:S0,E1:S1,...] [WT | WB] [NORA | RA] [Direct |
Cached] [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]] [-strpszM]
[-Hsp[E0:S0,...]] [-AfterLdX] | -Force [FDE|CtrlBased] [-Cache] [-enblPI
-val] -aN
In my opinion, running this command does not create a drive group.
My second question: Is a RAID Array the same thing as a Drive Group, in MegaRAID ?
I am assuming they are the same thing.
What I actually want to achieve is to create a RAID Array , and in that array more than one virtual volumes.
megaraid megacli
megaraid megacli
asked Dec 8 '13 at 0:42
liviurliviur
112
112
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
Drive group is essentially idea/concept. For instance, if you create RAID 1. You have two drives that make up this RAID 1. Two drives are Drive group
. On those two drives you can have one or more virtual drives
. Virtual drive can be considered as partition on this RAID 1 array / Drive group. If you want single virtual drive with maximum size (size of drive in drive group) you would do something like
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -a0
however if you want to split your Drive Group in two virtual drives you can do it like this
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
These commands would create RAID 1 of drives in Enclosure 252, slot 0 and 1 with
writeback enabled, readahead enabled, direct I/O cache policy, still use controller cache if battery goes bad (possibly trouble) and size (-sz500GB
) as option if you want to use less than maximum space and have multiple virtual drives in drive group
add a comment |
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1 Answer
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1 Answer
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active
oldest
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active
oldest
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Drive group is essentially idea/concept. For instance, if you create RAID 1. You have two drives that make up this RAID 1. Two drives are Drive group
. On those two drives you can have one or more virtual drives
. Virtual drive can be considered as partition on this RAID 1 array / Drive group. If you want single virtual drive with maximum size (size of drive in drive group) you would do something like
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -a0
however if you want to split your Drive Group in two virtual drives you can do it like this
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
These commands would create RAID 1 of drives in Enclosure 252, slot 0 and 1 with
writeback enabled, readahead enabled, direct I/O cache policy, still use controller cache if battery goes bad (possibly trouble) and size (-sz500GB
) as option if you want to use less than maximum space and have multiple virtual drives in drive group
add a comment |
Drive group is essentially idea/concept. For instance, if you create RAID 1. You have two drives that make up this RAID 1. Two drives are Drive group
. On those two drives you can have one or more virtual drives
. Virtual drive can be considered as partition on this RAID 1 array / Drive group. If you want single virtual drive with maximum size (size of drive in drive group) you would do something like
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -a0
however if you want to split your Drive Group in two virtual drives you can do it like this
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
These commands would create RAID 1 of drives in Enclosure 252, slot 0 and 1 with
writeback enabled, readahead enabled, direct I/O cache policy, still use controller cache if battery goes bad (possibly trouble) and size (-sz500GB
) as option if you want to use less than maximum space and have multiple virtual drives in drive group
add a comment |
Drive group is essentially idea/concept. For instance, if you create RAID 1. You have two drives that make up this RAID 1. Two drives are Drive group
. On those two drives you can have one or more virtual drives
. Virtual drive can be considered as partition on this RAID 1 array / Drive group. If you want single virtual drive with maximum size (size of drive in drive group) you would do something like
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -a0
however if you want to split your Drive Group in two virtual drives you can do it like this
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
These commands would create RAID 1 of drives in Enclosure 252, slot 0 and 1 with
writeback enabled, readahead enabled, direct I/O cache policy, still use controller cache if battery goes bad (possibly trouble) and size (-sz500GB
) as option if you want to use less than maximum space and have multiple virtual drives in drive group
Drive group is essentially idea/concept. For instance, if you create RAID 1. You have two drives that make up this RAID 1. Two drives are Drive group
. On those two drives you can have one or more virtual drives
. Virtual drive can be considered as partition on this RAID 1 array / Drive group. If you want single virtual drive with maximum size (size of drive in drive group) you would do something like
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -a0
however if you want to split your Drive Group in two virtual drives you can do it like this
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
megacli -CfgLdAdd -r1 [252:0,252:1] WB RA Direct CachedBadBBU -sz500GB -a0
These commands would create RAID 1 of drives in Enclosure 252, slot 0 and 1 with
writeback enabled, readahead enabled, direct I/O cache policy, still use controller cache if battery goes bad (possibly trouble) and size (-sz500GB
) as option if you want to use less than maximum space and have multiple virtual drives in drive group
answered Nov 10 '14 at 13:06
Hrvoje ŠpoljarHrvoje Špoljar
4,5201839
4,5201839
add a comment |
add a comment |
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