[CentOS] Looking for a RAID1 box

Fri Jan 6 16:02:44 UTC 2023
Robert Moskowitz <rgm at htt-consult.com>

Well I just ordered a Proliant gen10+ microserver, as the gen10 of for 
1/2 the price was the $0.59 hamburger (we ad it, but you can't order it).

I also ordered 4 Seagate 4T terascale drives (seems nothing smaller around).

So in some 2 weeks I will have it all together and will see what happens 
when I do the install.


Supposedly there is an internal boot usb port in the gen10+

On 1/6/23 09:42, Robert Heller wrote:
> At Fri, 6 Jan 2023 08:39:22 +0100 CentOS mailing list <centos at centos.org> wrote:
>> Hi
>>> I have found a:
>>> HPE 873830-S01 ProLiant MicroServer Gen10
>>> for <$300 without drives.  If I can believe the seller, it has a AMD
>>> Opteron X3216 Dual-core (2 Core) 1.6GHz and 8GB Installed.
>>> It has 4 3.5" bays. and 1? "Media" bay?
>>> https://www.servertechsupply.com/873830-s01/
>>> this could well be acceptable.  Got to find out power draw.  Looks like
>>> ~40W.
>>> Any input on issues of OS install?  Do I go with separate OS and data
>>> RAID1 sets?
>> I usually do
>> [ 1(+n) RAID1 ]->[ LVM ]->[ XFS ]
>> then you can use LVM to manage different filesystems as required.
>> /boot and/or /boot/efi should be on its own RAID1 with old metadata
>> version but I'm not up to date about how the situation is exactly with
>> EL9.
> It depends on the version of Grub.  Grub V1 needs /boot to be RAID1 with old
> metadata (metadata at the *end* of the partition, so Grub just sees a plain
> ext2/3/4 file system to find vmlinuz and initrd).  Note: /boot/efi or the grub
> fs that Grub2 seems to want cannot be RAID, but you should duplicate the
> partitions across all of the physical disks in the raid set and arange some
> other way of "mirroring" them (eg rsync or some such -- does not need to be
> continious, since these file systems don't change continuiously).  I believe
> Grub V2 understands raid and LVM, so having a separate /boot raid set might
> not be needed.  Things like /boot/efi and grub's on fs still need to exist
> outside of the raid set and will need "manual" mirroring.
>> Simon
>>> Also HPE is ClearOS.  I ran ClearOS6 for years before going with QNAP
>>> turnkey.  Perhaps current ClearOS is better, but it does not handle
>>> multi-domain email as I need.  Or it did not.  So I am going to install
>>> my own CentOS variant and iRedMail...
>>> thanks
>>> On 1/5/23 13:08, Jon LaBadie wrote:
>>>> On Thu, Jan 05, 2023 at 08:18:08AM -0500, Robert Moskowitz wrote:
>>>>> Proliant gen8 does NOT have UEFI.
>>>>> So I think this means I better move up to the gen10...
>>>> I'm pleased with my Gen 10+ (Plus).  Pricer than I thought
>>>> you want.
>>>> I like the "no power supply", just an external brick.
>>>> Quiet.  I put in a PCI card to use 2 NVMe sticks, one for
>>>> system and one for /home.  You can also boot from an internal
>>>> usb port like a thumb drive permanently installed.
>>>> Carriers for 2.5inch SSD drives work fine so with few fans,
>>>> no drive motors, could be quite low power.
>>>> Mine acts as email server, local caching DNS server (dnsmasq)
>>>> and Amanda backup server.
>>>> Jon
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