Support NVMe_FC protocol #39
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kumarashit
reviewed
Aug 30, 2021
| func RemoveNvmeFcDevice(device string) (string, error) { | ||
| var multiPathName string | ||
| var err error | ||
| if strings.HasPrefix(device, "dm") { |
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This is valid only for DM multipath. If other multipath like Ultrapath or EMCPP comes then we will have to put other checks
| // devices: nvme0n1, nvme2n1, | ||
| _, err = getDeviceFromDM(multiPathName) | ||
| if err != nil { | ||
| log.Warningf("Get the devices from the multipath %s error: %v", multiPathName, err) |
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As this is just warning, this means the sys class has issues and we are ignoring it. Further when you try to flush the device without having the sysfs entries, will it create issues?
| return err | ||
| } | ||
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| if multiPathName != "" { |
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If this is multipath device, then the device flush attempt has already been done
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This PR addresses the changes required in current code base to support NVMe over FC protocol.
Current framework already has code to handle some part of the support
Unit test to be added to this PR
Key scenarios tested:
Volume create/delete
POD create/delete
Volume expand
Volume clone
Volume snapshot
Support DM multipath and single path
Data write on pvc
Node restart scenarios