Seagate 3 TB Desktop SATA HDD $74

I saw this discussion thread and placed an order for the Seagate Desktop 3TB SATA 6Gb/s 7200RPM 64MB Cache - 3.5" Internal Kit : STBD3000100 $74 (after the coupon) + sales tax. I hope to pick it up tomorrow. This Seagate Barracuda 3TB 7200RPM HD Review indicates the HDD isn't bad at all. I am hoping to replace my Seagate GoFLEX Home 1 TB HDD with this one. With such a spec, I am hoping to be able to maximize the R/W throughput on my Seagate GoFLEX Home over my 1 Gbps private LAN.

BTW, what partition scheme, i.e. old dos or new gpt, would you recommend for this 3 TB HDD?

Also, if anyone can provide the link to install armbian OS on a Seagate GoFLEX Home to its SATA HDD, I certainly will appreciate that.

I picked up the SATA HDD and the label says it is an ST3000DM001 model. Here is the Seagate Barracuda 3TB 7200RPM HD Review (model:ST3000DM001) and it looks good to me as a NAS drive on my Seagate GoFLEX Home. Anyway, I plugged it into my removable SATA slot and rebooted my computer. The excerpt (shown below) from an output of dmesg shows the new 3TB SATA HDD as sda which has no partition, yet. An interesting observation shows no Seagate label like the WDC label. Is this because the HDD has not been partitioned?

[    3.896522] ata4: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[    3.900981] ata4.00: ATA-6: WDC WD1200JB-00GVA0, 08.02D08, max UDMA/100
[    3.900985] ata4.00: 234441648 sectors, multi 16: LBA48
[    3.906772] ata4.00: configured for UDMA/100
[    3.907046] scsi 3:0:0:0: Direct-Access     ATA      WDC WD1200JB-00G 2D08 PQ: 0 ANSI: 5
[    3.907375] scsi 3:0:0:0: Attached scsi generic sg2 type 0
[    3.912818] sd 1:0:0:0: [sda] 5860533168 512-byte logical blocks: (3.00 TB/2.73 TiB)
[    3.912821] sd 1:0:0:0: [sda] 4096-byte physical blocks
[    3.912832] sd 3:0:0:0: [sdb] 234441648 512-byte logical blocks: (120 GB/112 GiB)
[    3.912903] sd 1:0:0:0: [sda] Write Protect is off
[    3.912905] sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
[    3.912913] sd 3:0:0:0: [sdb] Write Protect is off
[    3.912915] sd 3:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[    3.912941] sd 1:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.913053] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[    3.922144] sr 0:0:1:0: [sr0] scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray
[    3.922148] cdrom: Uniform CD-ROM driver Revision: 3.20
[    3.922495] sr 0:0:1:0: Attached scsi CD-ROM sr0
[    3.938473]  sdb: sdb1 sdb2 sdb3
[    3.939284] sd 3:0:0:0: [sdb] Attached SCSI disk
[    3.963338] sd 1:0:0:0: [sda] Attached SCSI disk

Below is the output of the hdparm utility from a 3x successive run. It shows the Timing buffered disk reads is in excess of 186+ MBps.

[root@linux:/home/local/PEOPLE/habibie 9%] # hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   2924 MB in  2.00 seconds = 1461.65 MB/sec
 Timing buffered disk reads: 564 MB in  3.01 seconds = 187.46 MB/sec
0.187u+2.564s=0:13.89e(19.7%) TDSavg=0k+0k+0k max=4212k 1166688+0io 2pf+0sw
[root@linux:/home/local/PEOPLE/habibie 10%] # hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   2986 MB in  2.00 seconds = 1493.31 MB/sec
 Timing buffered disk reads: 560 MB in  3.01 seconds = 186.26 MB/sec
0.107u+2.632s=0:13.51e(20.2%) TDSavg=0k+0k+0k max=4212k 1158144+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 11%] # hdparm -tT /dev/sda

/dev/sda:
 Timing cached reads:   2916 MB in  2.00 seconds = 1457.99 MB/sec
 Timing buffered disk reads: 562 MB in  3.00 seconds = 187.26 MB/sec
0.160u+2.566s=0:13.46e(20.2%) TDSavg=0k+0k+0k max=4212k 1162240+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 12%] #

BTW, my sdb is an old 120GB WDC WD1200JB-00GVA0 and is very slow. The output of the hdparm utility from a 3x successive run. It shows the Timing buffered disk reads is about 54 MBps.

[root@linux:/home/local/PEOPLE/habibie 12%] # hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   2822 MB in  2.00 seconds = 1410.59 MB/sec
 Timing buffered disk reads: 164 MB in  3.01 seconds =  54.48 MB/sec
0.119u+2.079s=0:14.21e(15.3%) TDSavg=0k+0k+0k max=4216k 347136+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 13%] # hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   2788 MB in  2.00 seconds = 1393.56 MB/sec
 Timing buffered disk reads: 164 MB in  3.04 seconds =  54.02 MB/sec
0.129u+2.072s=0:13.46e(16.2%) TDSavg=0k+0k+0k max=4216k 347136+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 14%] # hdparm -tT /dev/sdb

/dev/sdb:
 Timing cached reads:   2822 MB in  2.00 seconds = 1411.38 MB/sec
 Timing buffered disk reads: 164 MB in  3.05 seconds =  53.82 MB/sec
0.119u+2.063s=0:13.68e(15.8%) TDSavg=0k+0k+0k max=4216k 347136+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 15%] #

habibie Wrote:
-------------------------------------------------------
> BTW, what partition scheme, i.e. old dos or new gp
> t, would you recommend for this 3 TB HDD?
>
> Also, if anyone can provide the link to install ar
> mbian OS on a Seagate GoFLEX Home to its SATA HDD,
> I certainly will appreciate that.
I alway use GPT on anything over 500 GB. As for an Armbian install for the GoFlex home that would take a lot of customization as Armbian currently only supports Arm 7 and Arm 8 architectures and the GoFlex home is Arm 5.

Ray

> ly supports Arm 7 and Arm 8 architectures and the
> GoFlex home is Arm 5.

The correct nomenclature is ARMv5, ARMv7, and ARMv8. There is no such thing as ARM 5 architecture.

-bodhi
===========================
Forum Wiki
bodhi's corner (buy bodhi a beer)

rayknight Wrote:
-------------------------------------------------------
> habibie Wrote:
> --------------------------------------------------
> -----
> > BTW, what partition scheme, i.e. old dos or new gpt, would you recommend for this 3 TB HDD?
> >
> > Also, if anyone can provide the link to install armbian OS on a Seagate GoFLEX Home to its SATA HDD, I certainly will appreciate that.
> I alway use GPT on anything over 500 GB.
>
GPT it is. Thank you.

> As for an Armbian install for the GoFlex home that would take a lot of customization as Armbian currently only supports Arm 7 and Arm 8 architectures and the GoFlex home is Arm 5.
>
Any links on this you can provide so at least I can review the procedures?

I'm just familiar enough with Debian and Armbian to identify that all the boards that Armbian supports are either ARMv7 or ARMv8 which are based on either Debiian/Ubuntu armhf or arm64 repository. The kirkwood devices (which the Seagate GoFlex Home is one of) use the Debian/Ubuntu armel repository. Debian documents some of this at https://www.debian.org/ports/arm/ with a key fact below:

"Debian fully supports three ports to different flavours of little-endian ARM hardware:

• The ARM EABI (armel) port targets a range of older 32-bit ARM devices, particularly those used in NAS hardware and a variety of *plug computers.
• The newer ARM hard-float (armhf) port supports newer, more powerful 32-bit devices using version 7 of the ARM architecture specification.
• The 64-bit ARM (arm64) port supports the latest 64-bit ARM-powered devices.

"


Ray

Ray, thank you very much.

Me too Ray and bodhi, thank you for greatly helping us :-)

=========
-= Cloud 9 =-

I just got sometimes to create GPT partitions on my 3 TB HDD and use f3 utility to do some R/W on a 2GB partition. It gives me about 179/92 MBps average R/W, respectively. I wonder my Gigabit switch will be able to sustain that throughput when I put it on my Seagate GoFLEX Home unit.

[root@linux:/home/local/PEOPLE/habibie 59%] # f3write /mnt
Free space: 1.90 GB
Creating file 1.h2w ... OK!
Creating file 2.h2w ... OK!
Free space: 16.00 MB
Average writing speed: 92.12 MB/s
3.367u+7.262s=0:23.12e(45.9%) TDSavg=0k+0k+0k max=1700k 344+3958656io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 60%] # f3read /mnt
                  SECTORS      ok/corrupted/changed/overwritten
Validating file 1.h2w ... 2097152/        0/      0/      0
Validating file 2.h2w ... 1861264/        0/      0/      0

  Data OK: 1.89 GB (3958416 sectors)
Data LOST: 0.00 Byte (0 sectors)
               Corrupted: 0.00 Byte (0 sectors)
        Slightly changed: 0.00 Byte (0 sectors)
             Overwritten: 0.00 Byte (0 sectors)
Average reading speed: 179.47 MB/s
3.491u+1.503s=0:10.79e(46.2%) TDSavg=0k+0k+0k max=1700k 3958480+0io 0pf+0sw
[root@linux:/home/local/PEOPLE/habibie 61%] #