Dell PowerVault TL4000 User Manual
Page 35
磁带驱动器和磁带存储库性能注意事项
35
图 1-4. 示例 RAID 5 配置
总之,RAID 0 可以获得读和写性能的最佳整体配置,但没有考虑冗余性能。RAID 1 总体上效
果最差,因为需要对所有写入阵列的数据进行镜像,且读取数据时只涉及一个磁盘。RAID 5
的读性能很好,但写性能一般;然而,如果阵列中添加更多的磁盘,RAID 5 性能将得以改
进。如果 RAID 位于一个可提供更高高速缓存能力的硬盘柜中,则恢复操作期间的性能限制
可能会减少。但备份操作仍会受到 RAID 配置限制的影响。另外,阵列的特性依然很大程度
上依赖于“硬盘驱动器性能”中列出的具体硬盘驱动器的特性。
P1
D4
D7
D10
D13
D1
P2
D8
D11
D14
D2
D5
P3
D12
D15
D3
D6
D9
P4
D16
SCSI 或 RAID
控制器
磁带驱动器
读/写
读/写
D = 数据字节
硬盘
驱动器 1
硬盘
驱动器 2
硬盘
驱动器 3
硬盘
驱动器 4
P = 奇偶校验字节
See also other documents in the category Dell Computer hardware:
- PowerEdge RAID Controller H700 (56 pages)
- PowerEdge RAID Controller H700 (200 pages)
- PowerEdge RAID Controller H700 (178 pages)
- PowerVault TL2000 (16 pages)
- PowerVault TL2000 (3 pages)
- PowerVault TL2000 (116 pages)
- PowerVault 130T DLT (Tape Library) (49 pages)
- PowerVault TL2000 (1 page)
- PowerVault 110T DLT VS80 (Tape Drive) (49 pages)
- PowerVault TL2000 (22 pages)
- PowerVault TL4000 (306 pages)
- PowerVault TL2000 (2 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL2000 (176 pages)
- PowerEdge 800 (58 pages)
- PowerEdge 800 (87 pages)
- PowerEdge 800 (24 pages)
- PowerEdge 800 (82 pages)
- PowerEdge 800 (2 pages)
- PowerEdge 800 (27 pages)
- PowerEdge 800 (28 pages)
- PowerEdge 6400 (86 pages)
- PowerVault 124T (79 pages)
- PowerVault 124T (2 pages)
- PowerVault 124T (64 pages)
- PowerVault 124T (56 pages)
- PowerVault 124T (66 pages)
- PowerVault 124T (57 pages)
- PowerVault 110T LTO (Tape Drive) (28 pages)
- PowerVault 124T (55 pages)
- PowerVault 124T (73 pages)
- PowerVault 124T (65 pages)
- PowerVault 124T (4 pages)
- PowerVault TL4000 (2 pages)
- PowerVault TL4000 (16 pages)
- PowerVault TL4000 (116 pages)
- PowerVault TL4000 (1 page)
- PowerVault TL4000 (66 pages)
- PowerVault TL4000 (22 pages)
- PowerVault TL4000 (3 pages)
- PowerEdge RAID Controller 6i (156 pages)
- PowerEdge RAID Controller 6i (120 pages)
- PowerVault 715N (Rackmount NAS Appliance) (42 pages)
- PowerVault 715N (Rackmount NAS Appliance) (57 pages)