1 简介
此配置和去年9月的“miniHPC存储节点”有诸多相似之处,主要的修改有以下几点:
- 本次所搭建的NAS的应用场景对RDMA没有刚性需求,因此操作系统改用维护更简单的TrueNAS Scale 24.04。
- 改用1+1 CRPS冗余电源,一路接市电,一路接UPS。
- CPU+主板平台根据实际需求和当时行情做了调整。
- Data pool使用12块HC560 20TB,策略为单组RAID Z2,实测TrueNAS Scale 24.04下RAID Z2的随机读写性能有所提升。
- 作为ARC的内存增加到256GiB。
- 作为L2ARC的NVMe SSD使用PCIe x8 AIC形态的PBlaze5 920,容量提升到3.84TB。
- 取消Special VDEV和SLOG VDEV,因为本次所搭建的NAS对性能无极端需求,也不需要强制Sync写入。
我校财务政策较灵活,因此以上硬件均为自行采购并开发票报销,NAS主机部分花费~3.6万CNY,其余部分花费~6800CNY。
2 照片展示
▼ 12块WD Ultrastar DC HC560 20TB SATA HDD
如今HC560的价格已在正常水平(和HC550相比),不过近期HDD市场仍然持续涨价,自购入这批HC560以来,HC560单价又涨了~100CNY。
▼ CPU、主板、DIMM三件套
- 主板是MF51-ES3,笔者已经买过好几块,且玩了很久,个人认为此主板是个隐藏的宝贝:有3个直连CPU的PCIe x16,平台配套的CPU也是per-core性能很强的W-21xx和W-22xx系列,尤其适合DIY GPU服务器(当前用于DIY NAS服务器也很合适),关键是价格便宜,日常900多元,促销活动700多元,配套的CPU中性价比最高的是W-2135(6c12t,单核4.5GHz,全核4.4GHz),如今价格已降到110元。
- 此主板没有机箱跳线pin,有板载开关机按钮和重启按钮,实际使用时通过BMC控制更方便,这也是典型的服务器用法。
- DIMM是4条64GB 4DRx4,这种DIMM性价比反而最高,并且C422平台本就只有4条内存通道,当前方案怎么看都是最合适的。
▼ 老朋友机箱,由深圳君名创达/零夏壹度生产
- 靠下的CRPS模块被机箱的小突起挡住了,拔不出来,但无伤大雅。
▼ NAS内部视图
- 此机箱官方宣传最大支持160mm长度电源,但笔者取消2.5寸硬盘支架和电源侧的进风风扇后就可以装入260mm长度的CRPS模组。BTW,电源模组所配的硅胶模组线非常软,手感极好。
机箱客服称左侧网孔不是风扇位、不能安装风扇,但正常人应该一眼就能看出来这是典型的风扇安装位,实测可以安装9238风扇,笔者考虑风道后装成了出风,对HBA卡重点散热——此LSI 9300-16i HBA卡发热极大,必须主动散热。 - 购买机箱时没有选配风扇,自行按需配了更厚的9238和12038风扇。
- 1块致态7100 + 1块Optane P4800X组Mirror安装操作系统,进一步提升系统可用性。
▼ PCIe AIC三件套:SSD、40G/56G Eth/IB网卡、HBA卡
▼ 下层硬盘笼后侧视图
- 新版机箱的硬盘背板增加了风扇PWM调速功能,但笔者认为还是不够灵活,因此仍然使用主板风扇接口。
- 交换机电源的风扇非常吵,因此笔者自行购买建准磁悬浮轴承风扇替换之,由于其接口在市面上找不到,故采用了焊接方案。
- 顺便调整了风扇方向,和交换机机身风扇的风道配套。
- 此交换机不能像上次的白牌交换机一样随意对风扇进行调速,但改完电源的风扇后,噪音很低,实验室的伙伴们都表示可以接受。
▼ 部署完成
- 暂时没有买机柜,不过已在旁边预留空间以安放800mm深的标准机柜。
- 拍摄照片时NAS已经运行了3周,防尘网积灰速度肉眼可见……
3 性能测试
3.1 ZFS调优
TrueNAS Scale 24.04进一步优化了默认的ARC配置策略,不需要手动调节ARC相关的参数,但L2ARC参数仍需调节。编辑/etc/modprobe.d/zfs.conf,写入以下3行:
options zfs l2arc_noprefetch=0 options zfs l2arc_write_boost=10000000000 options zfs l2arc_write_max=10000000000
如此调节后,所有向HDD阵列中写入的数据都会同时写入到L2ARC,以最大化L2ARC命中率。为L2ARC配的SSD写入寿命很长,即使设置了上述的“暴力”策略,在实验室团队协作的使用场景下也可以使用很久。
3.2 本地读写性能(参数同上一期)
64GiB文件,128KiB数据块,顺序写
test_64g: (g=0): rw=write, bs=(R) 128KiB-128KiB, (W) 128KiB-128KiB, (T) 128KiB-128KiB, ioengine=libaio, iodepth=4 fio-3.33 Starting 1 thread test_64g: Laying out IO file (1 file / 65536MiB) Jobs: 1 (f=1): [W(1)][100.0%][w=1492MiB/s][w=11.9k IOPS][eta 00m:00s] test_64g: (groupid=0, jobs=1): err= 0: pid=94414: Mon May 20 07:26:30 2024 write: IOPS=14.2k, BW=1770MiB/s (1856MB/s)(64.0GiB/37023msec); 0 zone resets slat (usec): min=12, max=10981, avg=67.06, stdev=76.89 clat (usec): min=2, max=11532, avg=214.23, stdev=190.06 lat (usec): min=27, max=12736, avg=281.29, stdev=244.49 clat percentiles (usec): | 1.00th=[ 50], 5.00th=[ 65], 10.00th=[ 69], 20.00th=[ 81], | 30.00th=[ 97], 40.00th=[ 119], 50.00th=[ 145], 60.00th=[ 176], | 70.00th=[ 215], 80.00th=[ 330], 90.00th=[ 498], 95.00th=[ 603], | 99.00th=[ 783], 99.50th=[ 906], 99.90th=[ 1319], 99.95th=[ 1598], | 99.99th=[ 3163] bw ( MiB/s): min= 561, max= 4501, per=100.00%, avg=1775.79, stdev=604.47, samples=73 iops : min= 4492, max=36020, avg=14206.21, stdev=4835.95, samples=73 lat (usec) : 4=0.01%, 50=0.95%, 100=30.67%, 250=41.57%, 500=16.85% lat (usec) : 750=8.64%, 1000=0.99% lat (msec) : 2=0.30%, 4=0.02%, 10=0.01%, 20=0.01% cpu : usr=8.21%, sys=44.18%, ctx=165362, majf=0, minf=25 IO depths : 1=0.1%, 2=0.1%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued rwts: total=0,524288,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=4 Run status group 0 (all jobs): WRITE: bw=1770MiB/s (1856MB/s), 1770MiB/s-1770MiB/s (1856MB/s-1856MB/s), io=64.0GiB (68.7GB), run=37023-37023msec
64GiB文件,8KiB数据块,随机读
test_64g: (g=0): rw=randread, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=32 fio-3.33 Starting 1 thread Jobs: 1 (f=1): [r(1)][100.0%][r=599MiB/s][r=76.7k IOPS][eta 00m:00s] test_64g: (groupid=0, jobs=1): err= 0: pid=99657: Mon May 20 07:32:17 2024 read: IOPS=37.5k, BW=293MiB/s (307MB/s)(64.0GiB/223892msec) slat (usec): min=3, max=731, avg=25.39, stdev= 7.39 clat (usec): min=2, max=3090, avg=828.26, stdev=92.02 lat (usec): min=30, max=3284, avg=853.65, stdev=94.70 clat percentiles (usec): | 1.00th=[ 429], 5.00th=[ 635], 10.00th=[ 758], 20.00th=[ 807], | 30.00th=[ 824], 40.00th=[ 840], 50.00th=[ 848], 60.00th=[ 857], | 70.00th=[ 873], 80.00th=[ 881], 90.00th=[ 898], 95.00th=[ 906], | 99.00th=[ 930], 99.50th=[ 938], 99.90th=[ 1090], 99.95th=[ 1516], | 99.99th=[ 1582] bw ( KiB/s): min=265136, max=597856, per=99.95%, avg=299596.60, stdev=34686.06, samples=447 iops : min=33148, max=74732, avg=37449.28, stdev=4335.72, samples=447 lat (usec) : 4=0.01%, 50=0.01%, 100=0.01%, 250=0.01%, 500=2.21% lat (usec) : 750=7.42%, 1000=90.20% lat (msec) : 2=0.16%, 4=0.01% cpu : usr=5.11%, sys=94.88%, ctx=778, majf=0, minf=77 IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0% issued rwts: total=8388608,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=32 Run status group 0 (all jobs): READ: bw=293MiB/s (307MB/s), 293MiB/s-293MiB/s (307MB/s-307MB/s), io=64.0GiB (68.7GB), run=223892-223892msec
64GiB文件,8KiB数据块,随机读写(7:3)
test_64g: (g=0): rw=randrw, bs=(R) 8192B-8192B, (W) 8192B-8192B, (T) 8192B-8192B, ioengine=libaio, iodepth=32 fio-3.33 Starting 1 thread Jobs: 1 (f=1): [m(1)][99.7%][r=292MiB/s,w=126MiB/s][r=37.4k,w=16.2k IOPS][eta 00m:01s] test_64g: (groupid=0, jobs=1): err= 0: pid=110803: Mon May 20 07:39:01 2024 read: IOPS=20.4k, BW=159MiB/s (167MB/s)(44.8GiB/287677msec) slat (usec): min=2, max=31874, avg=30.16, stdev=29.48 clat (usec): min=42, max=34647, avg=1064.52, stdev=264.45 lat (usec): min=46, max=34708, avg=1094.68, stdev=270.28 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 799], 10.00th=[ 889], 20.00th=[ 938], | 30.00th=[ 963], 40.00th=[ 988], 50.00th=[ 1012], 60.00th=[ 1057], | 70.00th=[ 1139], 80.00th=[ 1221], 90.00th=[ 1319], 95.00th=[ 1385], | 99.00th=[ 1532], 99.50th=[ 1663], 99.90th=[ 3195], 99.95th=[ 4883], | 99.99th=[ 8160] bw ( KiB/s): min=131472, max=346192, per=100.00%, avg=163396.66, stdev=20779.36, samples=574 iops : min=16434, max=43274, avg=20424.61, stdev=2597.47, samples=574 write: IOPS=8749, BW=68.4MiB/s (71.7MB/s)(19.2GiB/287677msec); 0 zone resets slat (usec): min=5, max=17227, avg=37.67, stdev=29.73 clat (usec): min=2, max=34660, avg=1063.67, stdev=267.21 lat (usec): min=40, max=34758, avg=1101.34, stdev=274.34 clat percentiles (usec): | 1.00th=[ 537], 5.00th=[ 799], 10.00th=[ 889], 20.00th=[ 938], | 30.00th=[ 963], 40.00th=[ 988], 50.00th=[ 1012], 60.00th=[ 1057], | 70.00th=[ 1139], 80.00th=[ 1221], 90.00th=[ 1319], 95.00th=[ 1385], | 99.00th=[ 1532], 99.50th=[ 1663], 99.90th=[ 3195], 99.95th=[ 4948], | 99.99th=[ 8029] bw ( KiB/s): min=57341, max=150080, per=100.00%, avg=70040.59, stdev=8930.77, samples=574 iops : min= 7167, max=18760, avg=8754.97, stdev=1116.33, samples=574 lat (usec) : 4=0.01%, 50=0.01%, 100=0.01%, 250=0.01%, 500=0.67% lat (usec) : 750=3.31%, 1000=42.34% lat (msec) : 2=53.40%, 4=0.21%, 10=0.07%, 20=0.01%, 50=0.01% cpu : usr=6.22%, sys=92.91%, ctx=34861, majf=0, minf=31 IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0% issued rwts: total=5871656,2516952,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=32 Run status group 0 (all jobs): READ: bw=159MiB/s (167MB/s), 159MiB/s-159MiB/s (167MB/s-167MB/s), io=44.8GiB (48.1GB), run=287677-287677msec WRITE: bw=68.4MiB/s (71.7MB/s), 68.4MiB/s-68.4MiB/s (71.7MB/s-71.7MB/s), io=19.2GiB (20.6GB), run=287677-287677msec
256GiB文件,128KiB数据块,随机读
test_256g: (g=0): rw=randread, bs=(R) 128KiB-128KiB, (W) 128KiB-128KiB, (T) 128KiB-128KiB, ioengine=libaio, iodepth=32 fio-3.33 Starting 1 thread Jobs: 1 (f=1): [r(1)][100.0%][r=1409MiB/s][r=11.3k IOPS][eta 00m:00s] test_256g: (groupid=0, jobs=1): err= 0: pid=135893: Mon May 20 10:31:24 2024 read: IOPS=11.9k, BW=1485MiB/s (1557MB/s)(256GiB/176514msec) slat (usec): min=16, max=19931, avg=82.63, stdev=154.27 clat (usec): min=3, max=23760, avg=2610.14, stdev=975.50 lat (usec): min=37, max=23821, avg=2692.77, stdev=993.63 clat percentiles (usec): | 1.00th=[ 1336], 5.00th=[ 1631], 10.00th=[ 1811], 20.00th=[ 2040], | 30.00th=[ 2212], 40.00th=[ 2376], 50.00th=[ 2540], 60.00th=[ 2704], | 70.00th=[ 2868], 80.00th=[ 3097], 90.00th=[ 3392], 95.00th=[ 3654], | 99.00th=[ 4293], 99.50th=[ 4686], 99.90th=[18744], 99.95th=[20317], | 99.99th=[21890] bw ( MiB/s): min= 1197, max= 1954, per=100.00%, avg=1487.26, stdev=168.17, samples=353 iops : min= 9577, max=15633, avg=11897.77, stdev=1345.29, samples=353 lat (usec) : 4=0.01%, 50=0.01%, 100=0.01%, 250=0.01%, 500=0.01% lat (usec) : 750=0.01%, 1000=0.01% lat (msec) : 2=18.16%, 4=79.87%, 10=1.72%, 20=0.19%, 50=0.06% cpu : usr=1.97%, sys=40.62%, ctx=409538, majf=0, minf=526 IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0% issued rwts: total=2097152,0,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=32 Run status group 0 (all jobs): READ: bw=1485MiB/s (1557MB/s), 1485MiB/s-1485MiB/s (1557MB/s-1557MB/s), io=256GiB (275GB), run=176514-176514msec
256GiB文件,128KiB数据块,随机读写(7:3)
test_256g: (g=0): rw=randrw, bs=(R) 128KiB-128KiB, (W) 128KiB-128KiB, (T) 128KiB-128KiB, ioengine=libaio, iodepth=32 fio-3.33 Starting 1 thread Jobs: 1 (f=1): [m(1)][99.1%][r=2338MiB/s,w=1004MiB/s][r=18.7k,w=8034 IOPS][eta 00m:02s] test_256g: (groupid=0, jobs=1): err= 0: pid=153195: Mon May 20 10:43:04 2024 read: IOPS=6527, BW=816MiB/s (856MB/s)(179GiB/224864msec) slat (usec): min=28, max=24261, avg=136.55, stdev=189.30 clat (usec): min=2, max=85533, avg=3323.94, stdev=3062.59 lat (usec): min=35, max=86460, avg=3460.49, stdev=3194.26 clat percentiles (usec): | 1.00th=[ 938], 5.00th=[ 971], 10.00th=[ 988], 20.00th=[ 1020], | 30.00th=[ 1074], 40.00th=[ 1156], 50.00th=[ 1303], 60.00th=[ 1631], | 70.00th=[ 5735], 80.00th=[ 6456], 90.00th=[ 7242], 95.00th=[ 7963], | 99.00th=[12911], 99.50th=[15008], 99.90th=[19792], 99.95th=[23200], | 99.99th=[40109] bw ( KiB/s): min=270848, max=2747392, per=99.91%, avg=834751.64, stdev=818904.12, samples=449 iops : min= 2116, max=21464, avg=6521.32, stdev=6397.68, samples=449 write: IOPS=2799, BW=350MiB/s (367MB/s)(76.8GiB/224864msec); 0 zone resets slat (usec): min=18, max=4789, avg=31.63, stdev=23.80 clat (usec): min=143, max=81540, avg=3327.94, stdev=3073.95 lat (usec): min=164, max=81620, avg=3359.57, stdev=3079.39 clat percentiles (usec): | 1.00th=[ 938], 5.00th=[ 971], 10.00th=[ 988], 20.00th=[ 1020], | 30.00th=[ 1074], 40.00th=[ 1156], 50.00th=[ 1303], 60.00th=[ 1631], | 70.00th=[ 5735], 80.00th=[ 6456], 90.00th=[ 7242], 95.00th=[ 7963], | 99.00th=[12911], 99.50th=[15008], 99.90th=[19792], 99.95th=[23200], | 99.99th=[42206] bw ( KiB/s): min=102656, max=1202944, per=99.91%, avg=357940.76, stdev=350755.27, samples=449 iops : min= 802, max= 9398, avg=2796.24, stdev=2740.26, samples=449 lat (usec) : 4=0.01%, 50=0.01%, 100=0.01%, 250=0.01%, 500=0.01% lat (usec) : 750=0.01%, 1000=13.61% lat (msec) : 2=47.74%, 4=0.92%, 10=36.03%, 20=1.60%, 50=0.09% lat (msec) : 100=0.01% cpu : usr=2.98%, sys=31.77%, ctx=557496, majf=0, minf=25 IO depths : 1=0.1%, 2=0.1%, 4=0.1%, 8=0.1%, 16=0.1%, 32=100.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.1%, 64=0.0%, >=64=0.0% issued rwts: total=1467743,629409,0,0 short=0,0,0,0 dropped=0,0,0,0 latency : target=0, window=0, percentile=100.00%, depth=32 Run status group 0 (all jobs): READ: bw=816MiB/s (856MB/s), 816MiB/s-816MiB/s (856MB/s-856MB/s), io=179GiB (192GB), run=224864-224864msec WRITE: bw=350MiB/s (367MB/s), 350MiB/s-350MiB/s (367MB/s-367MB/s), io=76.8GiB (82.5GB), run=224864-224864msec
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