Here's the existing configuration. We have 8 disks in an x4270 running RedHat Linux. Customer ordered another 4 disks to increase the existing filesystem. Is adding the 4 disks to the existing RAID10 possible? I have not found any helpful docs that would make me move forward with this 'experiment'.
# ./MegaCli64 -LDinfo -Lall -aALL
Adapter 0 -- Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 1.086 TB
State : Optimal
Strip Size : 64 KB
Number Of Drives per span:4
Span Depth : 2
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Access Policy : Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
Default Power Savings Policy: Controller Defined
Current Power Savings Policy:
Can spin up in 1 minute: Yes
LD has drives that support T10 power conditions: Yes
LD's IO profile supports MAX power savings with cached writes: Yes
# ./MegaCli64 -CfgDsply -aALL
==============================================================================
Adapter: 0
Product Name: LSI MegaRAID SAS 9261-8i
Memory: 512MB
BBU: Present
Serial No: SV21209356
==============================================================================
Number of DISK GROUPS: 1
SPANNED DISK GROUP: 0
Number of Spans: 2
SPAN: 0
Span Reference: 0x00
Number of PDs: 4
Number of VDs: 1
Number of dedicated Hotspares: 0
Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 1.086 TB
State : Optimal
Strip Size : 64 KB
Number Of Drives per span:4
Span Depth : 2
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Access Policy : Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
Default Power Savings Policy: Controller Defined
Current Power Savings Policy:
Can spin up in 1 minute: Yes
LD has drives that support T10 power conditions: Yes
LD's IO profile supports MAX power savings with cached writes: Yes
Physical Disk Information:
Physical Disk: 0
Enclosure Device ID: 16
Slot Number: 0
Enclosure position: 0
Device Id: 15
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f6741
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8GLXM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :29 Celsius
Physical Disk: 1
Enclosure Device ID: 16
Slot Number: 1
Enclosure position: 0
Device Id: 14
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f5ef1
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8G1SM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :28 Celsius
Physical Disk: 2
Enclosure Device ID: 16
Slot Number: 2
Enclosure position: 0
Device Id: 13
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f5fc9
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8G3HM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :28 Celsius
Physical Disk: 3
Enclosure Device ID: 16
Slot Number: 3
Enclosure position: 0
Device Id: 12
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f6839
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8GNXM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :28 Celsius
SPAN: 1
Span Reference: 0x01
Number of PDs: 4
Number of VDs: 1
Number of dedicated Hotspares: 0
Virtual Drive Information:
Virtual Drive: 0 (Target Id: 0)
Name :
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0
Size : 1.086 TB
State : Optimal
Strip Size : 64 KB
Number Of Drives per span:4
Span Depth : 2
Default Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Current Cache Policy: WriteBack, ReadAheadNone, Direct, No Write Cache if Bad BBU
Access Policy : Read/Write
Disk Cache Policy : Disk's Default
Encryption Type : None
Default Power Savings Policy: Controller Defined
Current Power Savings Policy:
Can spin up in 1 minute: Yes
LD has drives that support T10 power conditions: Yes
LD's IO profile supports MAX power savings with cached writes: Yes
Physical Disk Information:
Physical Disk: 0
Enclosure Device ID: 16
Slot Number: 4
Enclosure position: 0
Device Id: 11
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f6b19
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8GVVM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :27 Celsius
Physical Disk: 1
Enclosure Device ID: 16
Slot Number: 5
Enclosure position: 0
Device Id: 10
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f6b09
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8GVRM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :27 Celsius
Physical Disk: 2
Enclosure Device ID: 16
Slot Number: 6
Enclosure position: 0
Device Id: 9
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0db58d
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H7JRJM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :28 Celsius
Physical Disk: 3
Enclosure Device ID: 16
Slot Number: 7
Enclosure position: 0
Device Id: 8
Sequence Number: 2
Media Error Count: 0
Other Error Count: 0
Predictive Failure Count: 0
Last Predictive Failure Event Seq Number: 0
PD Type: SAS
Raw Size: 279.396 GB [0x22ecb25c Sectors]
Non Coerced Size: 278.896 GB [0x22dcb25c Sectors]
Coerced Size: 278.464 GB [0x22cee000 Sectors]
Firmware state: Online, Spun Up
SAS Address(0): 0x5000cca02a0f5eed
SAS Address(1): 0x0
Connected Port Number: 0(path0)
Inquiry Data: HITACHI HUS1530SCSUN300GA5C81212H8G1RM
FDE Capable: Not Capable
FDE Enable: Disable
Secured: Unsecured
Locked: Unlocked
Needs EKM Attention: No
Foreign State: None
Device Speed: 6.0Gb/s
Link Speed: 6.0Gb/s
Media Type: Hard Disk Device
Drive: Not Certified
Drive Temperature :26 Celsius
Exit Code: 0x00