[Samba] ODP: ODP: Primary DC migration / upgrade
krzysieq at hotmail.com
Thu Dec 9 13:15:01 UTC 2021
Thanks for all the hints, but my toys are already ordered :)
1. Gigabyte GA-E6010N (SoC AMD dual core cpu of some sort)
2. G.Skill DDR3 1333Mhz 4GB
3. Patriot Burst 120GB SATAIII 2.5" SSD
4. tiny case + PSU
All for less than 120GBP 😄 For my needs - primary dc, radius server, maybe dhcp (still on the fence on this one) should be more than good enough.
Reason I decided against going with Pi4 is I want my servers to run Debian, and Pi isn't officially supported because of closed source firmware or something. I know there are images available, but it's ARM and I don't really have much experience with that while I have enough problems with my domain as it is on x86 computers alone 🙂 Also, geared up to a case, power supply and everything needed to connect my 10TB backup hdd will cost a good deal more than what I'd spent.
Od: samba <samba-bounces at lists.samba.org> w imieniu użytkownika L.P.H. van Belle via samba <samba at lists.samba.org>
Wysłane: czwartek, 9 grudnia 2021 10:12
Do: samba at lists.samba.org <samba at lists.samba.org>
Temat: Re: [Samba] ODP: Primary DC migration / upgrade
Compaired to that Pi ..
And I forgot how old my server is, but its over 10 years old at least.
Asrock mainboard, AMD Onboard dualcore CPU E350 Max 1600MHz,
*(mostly running on 800MHz) 8GB ram (ddr3) , 1x SSD + 2x 3TB disks in mirror.
And SQL on SSD, data to mirrored disks.
/dev/sda: OCZ-VERTEX3: 128°C << wrong temp, ignore
hdparm -tT --direct /dev/sda
Timing O_DIRECT cached reads: 846 MB in 2.00 seconds = 422.58 MB/sec
Timing O_DIRECT disk reads: 1114 MB in 3.01 seconds = 370.57 MB/sec
hdparm -tT --direct /dev/sdb
Timing O_DIRECT cached reads: 866 MB in 2.00 seconds = 433.14 MB/sec
Timing O_DIRECT disk reads: 196 MB in 3.06 seconds = 64.07 MB/sec
Timing O_DIRECT cached reads: 850 MB in 2.00 seconds = 424.79 MB/sec
HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
Timing O_DIRECT disk reads: 292 MB in 3.01 seconds = 96.90 MB/sec
To give an idea.
Pi4 is nice but i personaly preffer the mini pc's or industreal pc's.
> -----Oorspronkelijk bericht-----
> Van: samba [mailto:samba-bounces at lists.samba.org] Namens Ingo
> Asche via samba
> Verzonden: woensdag 8 december 2021 20:50
> Aan: samba at lists.samba.org
> Onderwerp: Re: [Samba] ODP: Primary DC migration / upgrade
> What also may be an interesting solution:
> I have moved the root partitions of my Raspi DCs to an iSCSI
> LUN on my
> Synology NAS.
> For my Raspi 4 I get the following values from hdparm:
> hdparm -tT --direct /dev/sda
> Timing O_DIRECT cached reads: 210 MB in 2.02 seconds =
> 104.19 MB/sec
> Timing O_DIRECT disk reads: 268 MB in 3.01 seconds = 88.99
> Rowland Penny via samba schrieb am 08.12.2021 um 16:32:
> > On Wed, 2021-12-08 at 15:25 +0100, Norbert Hanke via samba wrote:
> >> Hi,
> >> I/O on the Rapberry Pi is as bad or good as the SD card used for
> >> storage. Look here for useful benchmarks:
> >> https://pibenchmarks.com/fastsd/ .
> >> With the RPi 3 you can expect approx. 8 MB/s random read and 4 MB/s
> >> random write with SanDisk SD cards; with the RPi 4 it's around 11
> >> MB/s
> >> random read and 5 MB/s random write with Kingston SD cards.
> >> That's "terrible" compared to a contemporary SSD but for a Domain
> >> Controller with no too many users it works fine.
> >> You can speed up the RPi 4 by having an SSD on its USB 3 port...
> >> makes
> >> it 10 times as fast, you could even boot from it but the latter is
> >> sometimes tricky to make it work.
> > Which is why I use an ssd on one of my rpi DC's and spinning rust on
> > the other. Setting up the ssd is a bit like setting up a Unix domain
> > member, it is easy when you get the hang of it :-)
> > Rowland
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