守护程序日志中显示以下症状。
19.04.2021 16:36:39 retrying mmd reservation request!!!
19.04.2021 16:36:49 Received reservation request status as 'rejected'. Retry check mmd-request status: count is 5(out of 5).
19.04.2021 16:36:49 Sending cancel broker request 460
19.04.2021 16:36:49 Request 460 was cancelled.
尝试启用和禁用存储节点，通过启用和禁用动态 nsrmmd 来刷新 nsrmmd，重新启动所有 NetWorker 服务，然后启动克隆作业。可以看到，启动克隆时设备未装载，守护程序日志中也如此显示。
0 19.04.2021 16:35:26 nsrd NSR notice 04/19/21 16:35:26.204079 broker_find_usable_save_mmd: Unable to find device for volume 511ABQL7. --------àthis volume is available in tape library
160814 19.04.2021 16:35:26 nsrd NSR warning Failed to allocate save mmd since it was not started. Reject request id 456 .
98307 19.04.2021 16:35:26 nsrd NSR severe There are no available devices for client `server.domain.com' on all usable storage nodes for the requested save operation.
0 19.04.2021 16:35:29 nsrd NSR notice 04/19/21 16:35:29.168450 Total broker requests created by preprocess 2.
199745 19.04.2021 16:35:29 nsrclone NSR warning Received reservation request status as 'rejected'. Retry check mmd-request status: count is 1(out of 5).
116284 19.04.2021 16:35:29 nsrclone NSR notice Sending cancel broker request 456
70495 19.04.2021 16:35:29 nsrd NSR warning User cancelled request 456.
180876 19.04.2021 16:35:29 nsrclone NSR info Request 456 was cancelled.
116283 19.04.2021 16:35:39 nsrclone NSR notice retrying mmd reservation request!!!
0 19.04.2021 16:35:46 nsrd NSR notice 04/19/21 16:35:46.275930 broker_find_usable_save_mmd: NSRATTR_CLONE_SAVE_VOL_HINT not set in the request.
160814 19.04.2021 16:35:46 nsrd NSR warning Failed to allocate save mmd since it was not started. Reject request id