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E系列直连12 Gb SAS性能下降和初始化时间较长

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适用场景

  • E2824
  • Toshiba (类型:AL15SEB120N固件MS00)

问题描述

  1. 首次设置RAID 6卷组(含6个HDD)需要10小时其他磁盘类型需要3小时
  2. 卷组的初始性能测试不符合顺序写入性能预期
  3. 创建卷组期间的主要事件日志中出现错误、禁用 写入缓存时出现主机多路径错误

示例

Host multipath driver configuration error detected - Host abc <--CRITICAL
Cache database mismatch has been detected - Shelf 99, Bay B
 
$ fio --name=test --filesize=10G --directory=/mnt/fio --bs=2M --nrfiles=1 --direct=1 --sync=0 --randrepeat=0 --rw=read --refill_buffers --end_fsync=1 --iodepth=1 --ioengine=sync --runtime=30s --numjobs=4
READ: bw=873MiB/s (916MB/s), 210MiB/s-243MiB/s (220MB/s-255MB/s), io=25.6GiB (27.5GB), run=30001-30007msec

Sequential READ/WRITE 50/50 (2MiB blocks) test with 4 processes:
$ fio --name=test --filesize=10G --directory=/mnt/fio --bs=2M --nrfiles=1 --direct=1 --sync=0 --randrepeat=0 --rw=rw --refill_buffers --end_fsync=1 --iodepth=1 --ioengine=sync --runtime=30s --numjobs=4
READ: bw=285MiB/s (299MB/s), 67.5MiB/s-73.1MiB/s (70.8MB/s-76.6MB/s), io=8562MiB (8978MB), run=30021-30038msec
WRITE: bw=280MiB/s (293MB/s), 68.4MiB/s-73.8MiB/s (71.7MB/s-77.4MB/s), io=8402MiB (8810MB), run=30021-30038msec

Sequential WRITE (2MiB blocks) test with 4 processes
$ fio --name=test --filesize=10G --directory=/mnt/fio --bs=2M --nrfiles=1 --direct=1 --sync=0 --randrepeat=0 --rw=write --refill_buffers --end_fsync=1 --iodepth=1 --ioengine=sync --runtime=30s --numjobs=4
WRITE: bw=215MiB/s (226MB/s), 49.3MiB/s-65.7MiB/s (51.7MB/s-68.9MB/s), io=6468MiB (6782MB), run=30005-30073msec

 

 

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