Hey,
So i just got my adaptec 8405 in a week ago and hooked it to my Intel res3tv360 36pt expander. all is working great! the maxview adaptec software sees all the correct info from the expander (its make, model, firmware, even temp!, correct port #s)...there are ALOT of complaints about maxview software around the web, but so far ive found it to be pretty good.
i'll post some quick, initial bench results below, but my main question is: What is my max ceiling speed wise due to port speed limitation?.
ie both are 12/gbs sff8643 ports (each sff8643 technically is 4x 12/gbs channels) but the speed of my actual drives is 3.0gb/s (sataI) so does that lock all the ports (on the expander and thus also to the 8405 HBA) to 3.0gb/s and thus my MAX is 4x 3.0gb/s (1200mb/s max theoretical).
I even hooked my older intel res2tv240 24 pt sff-8087 expander, into a port of the res3tv360 and that worked great too (was able to see a drive hooked into the res2tv240 as well as the expander itself in maxview)
btw: the only reason i had to ditch LSI cards is bc they do not allow you to create multiple raid types PER DISK, ie have a set of 5 disks - half of space is a 5x raid6 and the other half of the space is a 5x raid0. All raid cards, EXCEPT LSI allow you to do this, adaptec sales calls this feature:
"Optimized Disk Utilization (Multiple Arrays per disk)"
NOTE: one thing to be aware of, i noticed that on the expander, you MUST hook the sff8643->4x sata fan-out cables in the correct order (in the expanders manual there is a chart, that has A,B,C,D,E,F.... next to each of the expanders sff8643 ports). if you dont hook the drives up in the proper order, they will not show up to the HBA (the adaptec 8405 in my case)... luckily i figured this out very early on.
benches: (crystal mark 4.01 , win 2008r2 fresh install) - note all of these drives below are pretty old, both sets over 5 years of power on hours - ill post more benches when i grab my centos 6 USB stick on which i have tools strictly for benchmarks.
5x 150gb WD Velociraptor drives, Raid6 1024 stripe size:
Sequential Read (Q= 32,T= 1) : 434.986 MB/s
Sequential Write (Q= 32,T= 1) : 361.270 MB/s
Random Read 4KiB (Q= 32,T= 1) : 7.726 MB/s [ 1886.2 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 2.217 MB/s [ 541.3 IOPS]
Sequential Read (T= 1) : 412.759 MB/s
Sequential Write (T= 1) : 366.595 MB/s
Random Read 4KiB (Q= 1,T= 1) : 1.167 MB/s [ 284.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.998 MB/s [ 487.8 IOPS]
Test : 8192 MiB [G: 20.7% (10.4/50.0 GiB)] (x2)
12x 2TB Samsung F4 drives RD0/1024 stripe:
Sequential Read (Q= 32,T= 1) : 623.417 MB/s
Sequential Write (Q= 32,T= 1) : 950.166 MB/s
Random Read 4KiB (Q= 32,T= 1) : 5.247 MB/s [ 1281.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 10.488 MB/s [ 2560.5 IOPS]
Sequential Read (T= 1) : 598.603 MB/s
Sequential Write (T= 1) : 957.282 MB/s
Random Read 4KiB (Q= 1,T= 1) : 1.216 MB/s [ 296.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 8.480 MB/s [ 2070.3 IOPS]
Test : 32768 MiB [H: 0.0% (0.4/22319.9 GiB)] (x2)
6x 2TB Samsung 8405 drives RD0/1024 stripe:
Sequential Read (T= 1) : 651.200 MB/s
Sequential Write (T= 1) : 776.677 MB/s
Test : 8192 MiB [M: 0.0% (0.4/11159.9 GiB)] (x2
6x 2TB Samsung 8405 drives RD0/256k stripe:
Sequential Read (T= 1) : 466.419 MB/s
Sequential Write (T= 1) : 739.759 MB/s
Test : 8192 MiB [K: 0.0% (0.4/11159.9 GiB)] (x2)
So i just got my adaptec 8405 in a week ago and hooked it to my Intel res3tv360 36pt expander. all is working great! the maxview adaptec software sees all the correct info from the expander (its make, model, firmware, even temp!, correct port #s)...there are ALOT of complaints about maxview software around the web, but so far ive found it to be pretty good.
i'll post some quick, initial bench results below, but my main question is: What is my max ceiling speed wise due to port speed limitation?.
ie both are 12/gbs sff8643 ports (each sff8643 technically is 4x 12/gbs channels) but the speed of my actual drives is 3.0gb/s (sataI) so does that lock all the ports (on the expander and thus also to the 8405 HBA) to 3.0gb/s and thus my MAX is 4x 3.0gb/s (1200mb/s max theoretical).
I even hooked my older intel res2tv240 24 pt sff-8087 expander, into a port of the res3tv360 and that worked great too (was able to see a drive hooked into the res2tv240 as well as the expander itself in maxview)
btw: the only reason i had to ditch LSI cards is bc they do not allow you to create multiple raid types PER DISK, ie have a set of 5 disks - half of space is a 5x raid6 and the other half of the space is a 5x raid0. All raid cards, EXCEPT LSI allow you to do this, adaptec sales calls this feature:
"Optimized Disk Utilization (Multiple Arrays per disk)"
NOTE: one thing to be aware of, i noticed that on the expander, you MUST hook the sff8643->4x sata fan-out cables in the correct order (in the expanders manual there is a chart, that has A,B,C,D,E,F.... next to each of the expanders sff8643 ports). if you dont hook the drives up in the proper order, they will not show up to the HBA (the adaptec 8405 in my case)... luckily i figured this out very early on.
benches: (crystal mark 4.01 , win 2008r2 fresh install) - note all of these drives below are pretty old, both sets over 5 years of power on hours - ill post more benches when i grab my centos 6 USB stick on which i have tools strictly for benchmarks.
5x 150gb WD Velociraptor drives, Raid6 1024 stripe size:
Sequential Read (Q= 32,T= 1) : 434.986 MB/s
Sequential Write (Q= 32,T= 1) : 361.270 MB/s
Random Read 4KiB (Q= 32,T= 1) : 7.726 MB/s [ 1886.2 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 2.217 MB/s [ 541.3 IOPS]
Sequential Read (T= 1) : 412.759 MB/s
Sequential Write (T= 1) : 366.595 MB/s
Random Read 4KiB (Q= 1,T= 1) : 1.167 MB/s [ 284.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 1.998 MB/s [ 487.8 IOPS]
Test : 8192 MiB [G: 20.7% (10.4/50.0 GiB)] (x2)
12x 2TB Samsung F4 drives RD0/1024 stripe:
Sequential Read (Q= 32,T= 1) : 623.417 MB/s
Sequential Write (Q= 32,T= 1) : 950.166 MB/s
Random Read 4KiB (Q= 32,T= 1) : 5.247 MB/s [ 1281.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 10.488 MB/s [ 2560.5 IOPS]
Sequential Read (T= 1) : 598.603 MB/s
Sequential Write (T= 1) : 957.282 MB/s
Random Read 4KiB (Q= 1,T= 1) : 1.216 MB/s [ 296.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 8.480 MB/s [ 2070.3 IOPS]
Test : 32768 MiB [H: 0.0% (0.4/22319.9 GiB)] (x2)
6x 2TB Samsung 8405 drives RD0/1024 stripe:
Sequential Read (T= 1) : 651.200 MB/s
Sequential Write (T= 1) : 776.677 MB/s
Test : 8192 MiB [M: 0.0% (0.4/11159.9 GiB)] (x2
6x 2TB Samsung 8405 drives RD0/256k stripe:
Sequential Read (T= 1) : 466.419 MB/s
Sequential Write (T= 1) : 739.759 MB/s
Test : 8192 MiB [K: 0.0% (0.4/11159.9 GiB)] (x2)