Change online RAID level 6 to 5 on D2600 and smart array P441

[Gabriel_PROUST]

Hello.

Firstly, I'm a french guy and my english is very bad, sorry if I made mistakes.

I would like to convert a LogicalDrive in a D2600 from RAID level 6 to RAID level 5.

My first question : Is it possible ?

My server is a "HP Proliant DL380 Gen9" with a RAID Card P441 and an additional storage HP2600.

The Operating system is VMware vSphere 6 Essentials,  installed with the custom ISO HPE.

All the storage on the D2600 is dedicated for one volume presented to one VM (Windows server 2012 R2).

We have got a pb on this storage for a few days. All free space are used by temporary vm disk and the

VM is unavailable.

I want increase the free space available on the D2600 storage converting from RAID level 6 to RAID level 5, if it's possible.

[root@ESX-Video:~]  /opt/hp/hpssacli/bin/hpssacli controller slot=3 show detail

Smart Array P441 in Slot 3

   Bus Interface: PCI

   Slot: 3

   Serial Number: PDNMH0ARH9M05N

   Cache Serial Number: PEYFP0BRH9L3R7

   RAID 6 (ADG) Status: Enabled

   Controller Status: OK

   Hardware Revision: B

   Firmware Version: 4.02

   Rebuild Priority: High

   Expand Priority: Medium

   Surface Scan Delay: 3 secs

   Surface Scan Mode: Idle

   Parallel Surface Scan Supported: Yes

   Current Parallel Surface Scan Count: 1

   Max Parallel Surface Scan Count: 16

   Queue Depth: Automatic

   Monitor and Performance Delay: 60  min

   Elevator Sort: Enabled

   Degraded Performance Optimization: Disabled

   Inconsistency Repair Policy: Disabled

   Wait for Cache Room: Disabled

   Surface Analysis Inconsistency Notification: Disabled

   Post Prompt Timeout: 15 secs

   Cache Board Present: True

   Cache Status: OK

   Cache Ratio: 10% Read / 90% Write

   Drive Write Cache: Disabled

   Total Cache Size: 4.0 GB

   Total Cache Memory Available: 3.8 GB

   No-Battery Write Cache: Disabled

   SSD Caching RAID5 WriteBack Enabled: True

   SSD Caching Version: 2

   Cache Backup Power Source: Batteries

   Battery/Capacitor Count: 1

   Battery/Capacitor Status: OK

   SATA NCQ Supported: True

   Spare Activation Mode: Activate on physical drive failure (default)

   Controller Temperature (C): 66

   Cache Module Temperature (C): 43

   Number of Ports: 2 External only

   Encryption: Disabled

   Express Local Encryption: False

   Driver Name: HP HPSA

   Driver Version: 6.0.0

   PCI Address (Domain:Bus:Device.Function): 0000:08:00.0

   Negotiated PCIe Data Rate: PCIe 3.0 x8 (7880 MB/s)

   Controller Mode: RAID

   Controller Mode Reboot: Not Required

   Latency Scheduler Setting: Disabled

   Current Power Mode: MaxPerformance

   Host Serial Number: CZJ53309DM

   Sanitize Erase Supported: True

   Primary Boot Volume: None

   Secondary Boot Volume: None

[root@ESX-Video:~]  /opt/hp/hpssacli/bin/hpssacli controller slot=3 ld all show detail

Smart Array P441 in Slot 3

   array A

      Logical Drive: 1

         Size: 54.6 TB

         Fault Tolerance: 6

         Heads: 255

         Sectors Per Track: 32

         Cylinders: 65535

         Strip Size: 256 KB

         Full Stripe Size: 2560 KB

         Status: OK

         MultiDomain Status: OK

         Caching:  Enabled

         Parity Initialization Status: Initialization Completed

         Unique Identifier: 600508B1001C774B946337A89DC8C106

         Logical Drive Label: 02447D2CPDNMH0ARH8Z0AUC32C

         Drive Type: Data

         LD Acceleration Method: Controller Cache

[root@ESX-Video:~]  /opt/hp/hpssacli/bin/hpssacli controller slot=3 pd all show

Smart Array P441 in Slot 3

   array A

      physicaldrive 1E:1:1 (port 1E:box 1:bay 1, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:2 (port 1E:box 1:bay 2, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:3 (port 1E:box 1:bay 3, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:4 (port 1E:box 1:bay 4, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:5 (port 1E:box 1:bay 5, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:6 (port 1E:box 1:bay 6, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:7 (port 1E:box 1:bay 7, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:8 (port 1E:box 1:bay 8, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:9 (port 1E:box 1:bay 9, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:10 (port 1E:box 1:bay 10, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:11 (port 1E:box 1:bay 11, SAS, 6001.1 GB, OK)

      physicaldrive 1E:1:12 (port 1E:box 1:bay 12, SAS, 6001.1 GB, OK)

  Can i convert the logicaldrive 1 in slot 3 on the smart array P441 from RAID level 6 to the RAID level 5 with all the system ONLINE?

Thanks