이미 구성되어 있는 서버의 레이드 레벨을 확인하다가 이상한 점이 있어서 질문 드립니다.
# megacli -LDPDInfo -aALL | egrep "Slot Number:|PDs:|Virtual Drive|Raw Size|State|RAID"
Virtual Drive: 0 (Target Id: 0)
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3
State : Optimal
Span: 0 - Number of PDs: 8
Slot Number: 0
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 1
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 2
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 3
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 4
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 5
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 6
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 7
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Virtual Drive: 1 (Target Id: 1)
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3
State : Optimal
Span: 0 - Number of PDs: 8
Slot Number: 0
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 1
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 2
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 3
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 4
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 5
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 6
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 7
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Virtual Drive: 2 (Target Id: 2)
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3
State : Optimal
Span: 0 - Number of PDs: 8
Slot Number: 0
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 1
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 2
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 3
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 4
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 5
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 6
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
Slot Number: 7
Raw Size: 558.911 GB [0x45dd2fb0 Sectors]
Foreign State: None
보시다시피 8개의 디스크를 장착할 수 있는 서버에, 디스크 8개가 장착되어 있습니다.
그런데 어떻게 레이드 구성이, 레이드5(디스크8개), 레이드5(디스크8개), 레이드5(디스크8개) 이렇게 되어 있는건 왜일까요??
다른 옵션으로 봐도 마찬가지네요;;
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System
Operating System: Linux version 5.4.0-90-generic
Driver Version: 07.713.01.00-rc1
CLI Version: 8.07.14
Hardware
Controller
ProductName : PERC H710 Mini(Bus 0, Dev 0)
SAS Address : 5c81f660ea194500
FW Package Version: 21.2.0-0007
Status : Optimal
BBU
BBU Type : BBU
Status : Healthy
Enclosure
Product Id : BP12G+
Type : SES
Status : OK
PD
Connector : 00<Internal><Encl Pos 1 >: Slot 0
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 1
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 2
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 3
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 4
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 5
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 6
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Connector : 00<Internal><Encl Pos 1 >: Slot 7
Vendor Id : HITACHI
Product Id : HUS156060VLS600
State : Online
Disk Type : SAS,Hard Disk Device
Capacity : 558.375 GB
Power State : Active
Storage
Virtual Drives
Virtual drive : Target Id 0 ,VD name Virtual Disk 0
Size : 1.799 TB
State : Optimal
RAID Level : 5
Virtual drive : Target Id 1 ,VD name Virtual Disk 1
Size : 1.799 TB
State : Optimal
RAID Level : 5
Virtual drive : Target Id 2 ,VD name Virtual Disk 2
Size : 222.226 GB
State : Optimal
RAID Level : 5
Storage
Virtual Drives
Virtual drive : Target Id 0 ,VD name Virtual Disk 0
Size : 1.799 TB
State : Optimal
RAID Level : 5
Virtual drive : Target Id 1 ,VD name Virtual Disk 1
Size : 1.799 TB
State : Optimal
RAID Level : 5
Virtual drive : Target Id 2 ,VD name Virtual Disk 2
Size : 222.226 GB
State : Optimal
RAID Level : 5
# megaclisas-status
-- Controller information --
-- ID | H/W Model | RAM | Temp | BBU | Firmware
c0 | PERC H710 Mini | 512MB | 79C | Good | FW: 21.2.0-0007
-- Array information --
-- ID | Type | Size | Strpsz | Flags | DskCache | Status | OS Path | CacheCade |InProgress
c0u0 | RAID-5 | 1799G | 64 KB | ADRA,WB | Default | Optimal | /dev/sda | Type : Read Only |None
c0u1 | RAID-5 | 1799G | 64 KB | ADRA,WB | Default | Optimal | /dev/sdb | Type : Read Only |None
c0u2 | RAID-5 | 222G | 64 KB | ADRA,WB | Default | Optimal | /dev/sdc | Type : Read Only |None
-- Disk information --
-- ID | Type | Drive Model | Size | Status | Speed | Temp | Slot ID | LSI ID
c0u0p0 | HDD | HITACHI HUS156060VLS600 E7702AWLVZXN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:0] | 0
c0u0p1 | HDD | HITACHI HUS156060VLS600 E7702AWLVSUN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:1] | 1
c0u0p2 | HDD | HITACHI HUS156060VLS600 E7702AWLX16N | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:2] | 2
c0u0p3 | HDD | HITACHI HUS156060VLS600 E7702AWKY5EN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:3] | 3
c0u0p4 | HDD | HITACHI HUS156060VLS600 E7702AWK7DYN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 50C | [32:4] | 4
c0u0p5 | HDD | HITACHI HUS156060VLS600 E7702AWLX9SN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:5] | 5
c0u0p6 | HDD | HITACHI HUS156060VLS600 E7702AWK84VN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:6] | 6
c0u0p7 | HDD | HITACHI HUS156060VLS600 E7702AWLN5HN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:7] | 7
c0u1p0 | HDD | HITACHI HUS156060VLS600 E7702AWLVZXN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:0] | 0
c0u1p1 | HDD | HITACHI HUS156060VLS600 E7702AWLVSUN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:1] | 1
c0u1p2 | HDD | HITACHI HUS156060VLS600 E7702AWLX16N | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:2] | 2
c0u1p3 | HDD | HITACHI HUS156060VLS600 E7702AWKY5EN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:3] | 3
c0u1p4 | HDD | HITACHI HUS156060VLS600 E7702AWK7DYN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 50C | [32:4] | 4
c0u1p5 | HDD | HITACHI HUS156060VLS600 E7702AWLX9SN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:5] | 5
c0u1p6 | HDD | HITACHI HUS156060VLS600 E7702AWK84VN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:6] | 6
c0u1p7 | HDD | HITACHI HUS156060VLS600 E7702AWLN5HN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:7] | 7
c0u2p0 | HDD | HITACHI HUS156060VLS600 E7702AWLVZXN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:0] | 0
c0u2p1 | HDD | HITACHI HUS156060VLS600 E7702AWLVSUN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:1] | 1
c0u2p2 | HDD | HITACHI HUS156060VLS600 E7702AWLX16N | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:2] | 2
c0u2p3 | HDD | HITACHI HUS156060VLS600 E7702AWKY5EN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:3] | 3
c0u2p4 | HDD | HITACHI HUS156060VLS600 E7702AWK7DYN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 50C | [32:4] | 4
c0u2p5 | HDD | HITACHI HUS156060VLS600 E7702AWLX9SN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 52C | [32:5] | 5
c0u2p6 | HDD | HITACHI HUS156060VLS600 E7702AWK84VN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 48C | [32:6] | 6
c0u2p7 | HDD | HITACHI HUS156060VLS600 E7702AWLN5HN | 558.3 Gb | Online, Spun Up | 6.0Gb/s | 51C | [32:7] | 7
¹°¸®ÀûÀÎ Àüü ·¹ÀÌµå º¼·ý : RAID 5 558.375GB x (8-1ea) = 3908.625GB
Virtual Drives 0 : 1.799TB = 1799GB ==> 47.3%
Virtual Drives 1 : 1.799TB = 1799GB ==> 47.3%
Virtual Drives 2 : 222.266GB ==> 5.4%
Virtual Drives 0 + 1+ 2 = 3802.266GB
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