Quadstor does not recognize Virident FlashMax II PCIe flash device as disk

[Tomi Hakala]

Hello,

We have few servers with Virident FlashMax II PCIe flash devices and I would like to use those as physical disks for Quadstor but Quadstor does not recognize them as SCSI devices. Virident vgc driver exposes these devices as SCSI devices and I am able to format them as normal disks in Linux.

Here are some details how these devices are presented in Linux, this is a vSphere virtual machine with Virident device presented as passthrough PCI adapter for direct access from VM. 

[root@quadstor2 src]# fdisk -l /dev/vgca0

Disk /dev/vgca0: 555.6 GB, 555611062272 bytes

255 heads, 128 sectors/track, 33246 cylinders

Units = cylinders of 32640 * 512 = 16711680 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

[root@quadstor2 src]# vgc-monitor -d vgca

vgc-monitor: 4.1.68415.C9B

Driver Uptime: 0:37

Card Name      Num Partitions      Card Type         Status

vgca           1                   VIR-M2-LP-550-1B  Good

  Serial Number      : x

  Card Info          : Part: 35000-00018-A3

                       Rev : FlashMAX II 61033, x32 Gen2

                       Boot ROM : 67980, non bootable

  Temperature        : 43 C (Safe)

  Temp Throttle      : Inactive

  Card State Details : Normal

  Action Required    : None

  Partition      Usable Capacity     RAID

  vgca0          555 GB              enabled

    Mode                          : maxcapacity

    Total Flash Bytes             : 59913467601920 (59.91TB) (reads)

                                    68537400082432 (68.54TB) (writes)

    Remaining Life                : 99.50%

    Partition State               : READY

    Flash Reserves Left           : 100.00%

bdconfig -l does not show vgca0 device

[root@quadstor2 bin]# ./bdconfig -l

ID  Vendor  Model    SerialNumber             Name     Pool    Size     Used     Status

1   VMware  Virtual  GEN00000000001542729381  /dev/sdb Default 10.00    2.47     D L WU

2   VMware  Virtual  GEN00000000000841705487  /dev/sdc Default 50.00    0.53

and I cannot force bdconfig to add vgca0 device as disk

[root@quadstor2 bin]# ./bdconfig -a -d /dev/vgca0

Unable to add disk. Message from server is Unable to find disk at /dev/vgca0 for addition

OS is CentOS Linux 6.5 with latests updates (kernel 2.6.32-431.17.1.el6.x86_64), Quadstor version is 3.0.65.8.

I will mail diagnostic logs to Quadstor support.

Tomi

[QUADStor Support]

Logs received and working on it. Thanks.

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