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NEC Storage M series are dual-controller disk arrays which supportonline maintenance.This driver supports both iSCSI and Fibre Channel.
System requirements¶
Supported models:
Storage model | Storage controlsoftware (firmware) | Disk type |
|---|---|---|
M110,M310,M510,M710 | 0979 or later | SSD/HDD hybrid |
M310F,M710F | 0979 or later | all flash |
M120,M320 | 1028 or later | SSD/HDD hybrid |
M320F | 1028 or later | all flash |
Requirements:
NEC Storage M series requires firmware revision 1028 or laterto create more than 1024 volumes in a pool.
NEC Storage DynamicDataReplication license.
(Optional) NEC Storage IO Load Manager license for QoS.
Supported operations¶
Create, delete, attach, and detach volumes.
Create, list, and delete volume snapshots.
Create a volume from a snapshot.
Copy an image to a volume.
Copy a volume to an image.
Clone a volume.
Extend a volume.
Migrate a volume.
Get volume statistics.
Efficient non-disruptive volume backup.
Manage and unmanage a volume.
Manage and unmanage a snapshot.
Attach a volume to multiple instances at once (multi-attach).
Revert a volume to a snapshot.
Preparation¶
Below is minimum preparation to a disk array.For details of each command, see the NEC Storage Manager Command Reference(IS052).
Common (iSCSI and Fibre Channel)
Initial setup
Set IP addresses for management and BMC with the network configurationtool.
Enter license keys. (iSMcfg licenserelease)
Create pools
Create pools for volumes. (iSMcfg poolbind)
Create pools for snapshots. (iSMcfg poolbind)
Create system volumes
Create a Replication Reserved Volume (RSV) in one of pools.(iSMcfg ldbind)
Create Snapshot Reserve Areas (SRAs) in each snapshot pool.(iSMcfg srabind)
(Optional) Register SSH public key
iSCSI only
Set IP addresses of each iSCSI port. (iSMcfg setiscsiport)
Create LD Sets for each node.(iSMcfg addldset)
Register initiator names of each node to the corresponding LD Set.(iSMcfg addldsetinitiator)
Fibre Channel only
Start access control. (iSMcfg startacc)
Create LD Sets for each node. (iSMcfg addldset)
Register WWPNs of each node to the corresponding LD Set.(iSMcfg addldsetpath)
Configuration¶
Set the following in your cinder.conf, and use the following optionsto configure it.
If you use Fibre Channel:
If you use iSCSI:
Also, set volume_backend_name.
This table shows configuration options for NEC Storage M series driver.
Configuration option = Default value | Description |
|---|---|
| (Boolean) Return actual free capacity. |
| (Boolean) Configure access control automatically. |
| (Integer) Maximum number of managing sessions. |
| (String) M-Series Storage LD name format for snapshots. |
| (List of String) M-Series Storage backup pool number to be used. |
| (String) M-Series Storage Control Volume name format. |
| (String) Diskarray name of M-Series Storage. |
| (IPAddress) FIP address of M-Series Storage iSMCLI. |
| (String) Password for M-Series Storage iSMCLI. |
| (String) Filename of RSA private key for M-Series Storage iSMCLI. |
| (String) User name for M-Series Storage iSMCLI. |
| (Boolean) Use legacy iSMCLI command with optimization. |
| (String) Output path of iSMview file. |
| (String) M-Series Storage LD name format for volumes. |
| (String) M-Series Storage LD Set name for Compute Node. |
| (List of String) M-Series Storage pool numbers list to be used. |
| (Boolean) Use legacy iSMCLI command. |
| (Integer) Port number of ssh pool. |
| (Integer) Timeout value of Unpairthread. |
| (Integer) Max number of iSCSI portals per controller. 0 => unlimited. This option is deprecated and may be removed in the next release. DEPRECATED |
Required options¶
nec_ismcli_fipFIP address of M-Series Storage.
nec_ismcli_userUser name for M-Series Storage iSMCLI.
nec_ismcli_passwordPassword for M-Series Storage iSMCLI.
nec_ismcli_privkeyRSA secret key file name for iSMCLI (for public key authentication only).Encrypted RSA secret key file cannot be specified.
nec_diskarray_nameDiskarray name of M-Series Storage.This parameter must be specified to configure multiple groups(multi back end) by using the same storage device (storagedevice that has the same
nec_ismcli_fip). Specify the diskarray name targeted by the relevant config-group for thisparameter.
nec_backup_poolsSpecify one pool number where snapshots are created. Multiple poolsare not supported.
Timeout configuration¶
rpc_response_timeoutSet the timeout value in seconds. If three or more volumes can be createdat the same time, the reference value is 30 seconds multiplied by thenumber of volumes created at the same time.Also, Specify nova parameters below in
nova.conffile.
timeoutserver(HAProxyconfiguration)In addition, you need to edit the following value in the HAProxyconfiguration file (
/etc/haproxy/haproxy.cfg) in an environment whereHAProxy is used.Run the service haproxy reload command after editing thevalue to reload the HAProxy settings.
Note
The OpenStack environment set up using Red Hat OpenStack PlatformDirector may be set to use HAProxy.
Configuration example for /etc/cinder/cinder.conf¶
When using one config-group¶
Drivers Neck
When using
nec_ismcli_passwordto authenticate iSMCLI(Password authentication):When using
nec_ismcli_privkeyto authenticate iSMCLI(Public key authentication):
F1 Drivers Neck
When using multi config-group (multi-backend)¶
Drivers Necessary
Four config-groups (backends)
Storage1, Storage2, Storage3, Storage4
Two disk arrays
- 200000255C3A21CC(192.168.1.10)
Example for using config-group, Storage1 and Storage2
- 2000000991000316(192.168.1.20)
Example for using config-group, Storage3 and Storage4