可使用此过程确定是否需要为设备添加第一个写日志设备。当写高速缓存处于启用状态时,光纤通道和 iSCSI 写操作将同步进行并受益于日志设备。继续操作之前,务必完全阅读并了解有关在 LUN 上启用写高速缓存的影响说明。有关更多信息,请参见Oracle ZFS Storage Appliance 管理指南,发行版 OS8.8.0 中的 共享资源的空间管理。
要确定是否需要添加多个写日志设备,请参见何时添加多个写日志设备 (CLI)。
hostname:analytics worksheets> select worksheet-000 hostname:analytics worksheet-000> dataset
hostname:analytics worksheet-000 dataset (uncommitted)> set name=nfs2.ops[op] name = nfs2.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit
按操作类型细分的每秒 NFSv3 操作数 (nfs3.ops[op])
按操作类型细分的每秒 NFSv4 操作数 (nfs4.ops[op])
按操作类型细分的每秒 NFSv4.1 操作数 (nfs4-1.ops[op])
按操作类型细分的每秒 iSCSI 操作数 (iscsi.ops[op])
按操作类型细分的每秒光纤通道操作数 (fc.ops[op])
按操作类型细分的每秒 SMB 操作数 (smb.ops[op])
hostname:analytics worksheet-000 dataset (uncommitted)> set name=nfs3.ops[op] name = nfs3.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit hostname:analytics worksheet-000> dataset hostname:analytics worksheet-000 dataset (uncommitted)> set name=nfs4.ops[op] name = nfs4.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit hostname:analytics worksheet-000> dataset hostname:analytics worksheet-000 dataset (uncommitted)> set name=nfs4-1.ops[op] name = nfs4-1.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit hostname:analytics worksheet-000> dataset hostname:analytics worksheet-000 dataset (uncommitted)> set name=iscsi.ops[op] name = iscsi.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit hostname:analytics worksheet-000> dataset hostname:analytics worksheet-000 dataset (uncommitted)> set name=fc.ops[op] name = fc.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit hostname:analytics worksheet-000> dataset hostname:analytics worksheet-000 dataset (uncommitted)> set name=smb.ops[op] name = smb.ops[op] hostname:analytics worksheet-000 dataset (uncommitted)> commit
hostname:analytics worksheet-000> done hostname:analytics worksheets> done
hostname:> analytics datasets
hostname:analytics datasets> show Datasets: DATASET STATE INCORE ONDISK NAME dataset-000 active 1.27M 15.5M arc.accesses[hit/miss] dataset-001 active 517K 9.21M arc.accesses[hit/miss=metadata hits][L2ARC eligibility] ... dataset-030 active 290K 7.80M nfs2.ops[op] hostname:analytics datasets>
在此示例中,数据集名称 nfs2.ops[op] 对应于 dataset-030。
hostname:analytics datasets> select dataset-030
hostname:analytics dataset-030> read 900
hostname:analytics dataset-030> done
按操作类型细分的每秒 NFSv3 操作数 (nfs3.ops[op])
按操作类型细分的每秒 NFSv4 操作数 (nfs4.ops[op])
按操作类型细分的每秒 NFSv4.1 操作数 (nfs4-1.ops[op])
按操作类型细分的每秒 iSCSI 操作数 (iscsi.ops[op])
按操作类型细分的每秒光纤通道操作数 (fc.ops[op])
按操作类型细分的每秒 SMB 操作数 (smb.ops[op])
hostname:analytics datasets> show ... hostname:analytics datasets> select dataset-032 hostname:analytics dataset-032> read 900 ... hostname:analytics dataset-032> done hostname:analytics datasets> show ... hostname:analytics datasets> select dataset-034 ... hostname:analytics datasets> select dataset-27 ... hostname:analytics datasets> select dataset-13 ... hostname:analytics datasets> select dataset-07 ... hostname:analytics datasets> select dataset-40
当出现以下一种或全部情况时,您可能需要添加第一个写日志设备:
iSCSI 写操作、光纤通道写操作和 NFS/SMB 同步操作之和至少为每秒 1000 次
NFS 的提交次数每秒至少 100 次