Re: Synology Diskstation architecture (was: Re: News : ARM Trying to Buy AmperComputing)

On 1/20/25 9:48 PM, vallor wrote:

On Mon, 20 Jan 2025 19:42:59 -0500, "186282@ud0s4.net" <186283@ud0s4.net>
wrote in <RtudnVi93qkPcBP6nZ2dnZfqnPudnZ2d@earthlink.com>:
 

On 1/20/25 3:53 PM, D wrote:

>
>
On Mon, 20 Jan 2025, The Natural Philosopher wrote:
>

On 20/01/2025 09:30, D wrote:

>
  The Pi hat or OMV ?

>
The pi, with directly connected spinning disks. Does the hat have its
own extra power supply?

>
I've managed to get a P4 I think to run one spinning rust disk without
extra power.
Strictly it depends on the disk.
The pi hat for 5 drives has an external 60W PSU

>
Ahh, if it has an external PSU then there is no problem. Ideally, if
the pi hat for 5 drives is intended to accomodate 5 spinning drives, it
would be nice if it did so at full speeds.

>
>
    One review said the WRITEs were a little pokey,
    but not TOO bad. READs were apparently snappy.
>
    This is OK ... most stuff on HDDs is "write once /
    read more often".
>
>

Given that the server manufacturers seem to no longer want to produce
smaller, cheaper nodes, but only want to sell huge GPU machines, I'm
contemplating if it actually might not be possible to build a nice
archive solution on pi:s, spinning disks and a few cards at a good
price.
>
To be continued... as the saying goes.

>
    Yep ... lemme get in and fool with my 5-drive unit a bit and I'll
    write a hands-on report. The price is good enough (the DRIVES are $$$
    alas)
>
    Even without the SATA hat ... you CAN run a number of external USB
    3.x drives from a Pi. Won't be as quick, but it works OK.
>
    And yea, I know what you mean about everybody trending towards
    "overkill" boxes/systems. Better $ margin I guess.
    Still no shortage of motherboards - so you can build your own
    "appropriate" boxes.
>
    For an NAS, it's the drive speeds that are kinda the limiting factor,
    so even a 'slow' motherboard won't hurt anything. It's all I/O-bound.
>
    The popular Sinology canned NAS units - 4/6/8/12 drive units with
    multiple network plugs - all use basically laptop-grade 'Celeron'
    grade processors.

 Beg to differ...this is on my Synology Diskstation:
 root@DT:~# uname -a
Linux DT 3.10.108 #42962 SMP Mon Aug 19 15:14:28 CST 2024 armv7l
GNU/Linux synology_alpine_ds2015xs
 root@DT:~# cat /proc/cpuinfo
processor : 0
model name : ARMv7 Processor rev 4 (v7l)
Speed : 1.7GHz
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
idiva idivt
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc0f
CPU revision : 4
 processor : 1
model name : ARMv7 Processor rev 4 (v7l)
Speed : 1.7GHz
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
idiva idivt
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc0f
CPU revision : 4
 processor : 2
model name : ARMv7 Processor rev 4 (v7l)
Speed : 1.7GHz
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
idiva idivt
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc0f
CPU revision : 4
 processor : 3
model name : ARMv7 Processor rev 4 (v7l)
Speed : 1.7GHz
Features : swp half thumb fastmult vfp edsp neon vfpv3 tls vfpv4
idiva idivt
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x2
CPU part : 0xc0f
CPU revision : 4
 Hardware : AnnapurnaLabs Alpine (Device Tree)
Revision : 0000
Serial : 0000000000000000
 

   Last one I bought was basically a Celeron. Worked fine
   for a medium-sized office.
   The ARM-v7 series are 32-bitters, probably a rough
   equiv of yer basic Celeron in performance.
   In short you don't need an i9 for an NAS. The I/O
   waits suck up everything. Much of anything above
   yer Celeron or A7 is a waste of CPU.