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Veritas NetBackup™ Appliance 容量规划和性能调整指南

Last Published: 2020-10-05

Product(s): Appliances (3.3.0.1)

Platform: NetBackup Appliance OS

使用 nbperfchk 验证 NetBackup Appliance 上的磁盘性能

Nbperfchk 命令还可用于测试存储写入速度。如果磁盘写入速度下降至 130 MB/s 以下，则设备的基础存储配置可能存在潜在问题，应联系技术支持以进行调查。要使用 nbperfchk 测试磁盘写入速度，请将要测试的设备存储路径指定为 nbperfchk 的输出路径（-o 参数值）：

表：设备存储路径

设备存储	存储路径	示例
52xx MSDP	`/disk`	nbperfchk -I zero: -o /disk/nbperfchk.tst -s 64g -syncend
52xx AdvancedDisk	`/advanceddisk/advol`	nbperfchk -I zero: -o /advanceddisk/advol/nbperfchk.tst -s 64g -syncend

以下是 nbperfchk 到 MSDP 和 AdvancedDisk 存储的写入测试运行示例：1) Nbperfchk 到 MSDP 的写入测试：

symmaster-a.Support> Nbperfchk run
Please enter options:
nbperfchk -I zero: -o /disk/nbperfchk.tst -s 64g 
-syncend
Statistics log are recorded in nbperfchk_results.log
    3448 MB @ 1723.2 MB/sec, 3448 MB @ 1723.2 MB/sec, at 1369103472
    9380 MB @ 1875.6 MB/sec, 5932 MB @ 1977.3 MB/sec, at 1369103475
   12736 MB @ 1591.3 MB/sec, 3356 MB @ 1117.7 MB/sec, at 1369103478
   12736 MB @ 1157.1 MB/sec,    0 MB @    0.0 MB/sec, at 1369103481
   12736 MB @  909.1 MB/sec, 		 0 MB @    0.0 MB/sec, at 1369103484
   12736 MB @  748.6 MB/sec,    0 MB @    0.0 MB/sec, at 1369103487
   12736 MB @  636.3 MB/sec,    0 MB @    0.0 MB/sec, at 1369103490
   12736 MB @  553.4 MB/sec,    0 MB @    0.0 MB/sec, at 1369103493
   12736 MB @  489.5 MB/sec,    0 MB @    0.0 MB/sec, at 1369103496
   12736 MB @  438.9 MB/sec,    0 MB @    0.0 MB/sec, at 1369103499
   12736 MB @  397.8 MB/sec,    0 MB @    0.0 MB/sec, at 1369103502
   12736 MB @  363.7 MB/sec,    0 MB @    0.0 MB/sec, at 1369103505
   12736 MB @  335.0 MB/sec,    0 MB @    0.0 MB/sec, at 1369103508
   12736 MB @  310.4 MB/sec,    0 MB @    0.0 MB/sec, at 1369103511
   12736 MB @  289.3 MB/sec,    0 MB @    0.0 MB/sec, at 1369103514
   12736 MB @  270.8 MB/sec,    0 MB @    0.0 MB/sec, at 1369103517
   12736 MB @  254.5 MB/sec,    0 MB @    0.0 MB/sec, at 1369103520
   18182 MB @  342.8 MB/sec, 5446 MB @ 1815.4 MB/sec, at 1369103523
   19936 MB @  355.8 MB/sec, 1753 MB @  583.9 MB/sec, at 1369103526
   19936 MB @  337.7 MB/sec,    0 MB @    0.0 MB/sec, at 1369103529
   < output removed for brevity >
   59456 MB @  265.2 MB/sec,    0 MB @    0.0 MB/sec, at 1369103694
   59456 MB @  261.7 MB/sec,    0 MB @    0.0 MB/sec, at 1369103697
   59456 MB @  258.3 MB/sec,    0 MB @    0.0 MB/sec, at 1369103700
   63330 MB @  271.6 MB/sec, 3873 MB @ 1289.9 MB/sec, at 1369103703
Starting file sync to flush buffers...
Sync completed in 19.21 seconds
   65536 MB @  258.2 MB/sec

2) Nbperfchk 到 AdvancedDisk 的写入测试：

symmaster-a.Support> Nbperfchk run
Please enter options:
nbperfchk -I zero: -o /advanceddisk/advol/nbperfchk.tst -s 64g -syncend
Statistics log are recorded in nbperfchk_results.log
    3776 MB @ 1886.3 MB/sec, 3776 MB @ 1886.3 MB/sec, at 1369103913
    9104 MB @ 1819.1 MB/sec, 5328 MB @ 1774.4 MB/sec, at 1369103916
   13036 MB @ 1627.9 MB/sec, 3931 MB @ 1309.2 MB/sec, at 1369103919
   13036 MB @ 1183.9 MB/sec,    0 MB @    0.0 MB/sec, at 1369103922
   13036 MB @  930.2 MB/sec,    0 MB @    0.0 MB/sec, at 1369103925
   13036 MB @  766.0 MB/sec,    0 MB @    0.0 MB/sec, at 1369103928
   13036 MB @  651.1 MB/sec,    0 MB @    0.0 MB/sec, at 1369103931
   13036 MB @  566.2 MB/sec,    0 MB @    0.0 MB/sec, at 1369103934
   13036 MB @  500.9 MB/sec,    0 MB @    0.0 MB/sec, at 1369103937
   13529 MB @  270.3 MB/sec,  493 MB @  164.4 MB/sec, at 1369103961
   < output removed for brevity > 
   59278 MB @  315.0 MB/sec,    0 MB @    0.0 MB/sec, at 1369104099
   59278 MB @  310.1 MB/sec,    0 MB @    0.0 MB/sec, at 1369104102
   59278 MB @  305.3 MB/sec,    0 MB @    0.0 MB/sec, at 1369104105
   59278 MB @  300.6 MB/sec,    0 MB @    0.0 MB/sec, at 1369104108
   59278 MB @  296.1 MB/sec,    0 MB @    0.0 MB/sec, at 1369104111
   59278 MB @  291.7 MB/sec,    0 MB @    0.0 MB/sec, at 1369104114
   59278 MB @  287.5 MB/sec,    0 MB @    0.0 MB/sec, at 1369104117
   59278 MB @  283.4 MB/sec,    0 MB @    0.0 MB/sec, at 1369104120
   59278 MB @  279.4 MB/sec,    0 MB @    0.0 MB/sec, at 1369104123
   59278 MB @  275.5 MB/sec,    0 MB @    0.0 MB/sec, at 1369104126
   59278 MB @  271.7 MB/sec,    0 MB @    0.0 MB/sec, at 1369104129
   59614 MB @  269.5 MB/sec,  336 MB @  112.1 MB/sec, at 1369104132
   63779 MB @  284.5 MB/sec, 4164 MB @ 1387.7 MB/sec, at 1369104135
Starting file sync to flush buffers...
Sync completed in 18.65 seconds
   65536 MB @  268.4 MB/sec

所有三个示例均显示磁盘写入吞吐量超过 130 MB/s，这表明了 MSDP 和 AdvancedDisk 存储的良好写入性能。