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Old 20th September 2021
frcc frcc is offline
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Default Modest Rack Server for httpd

I am looking at the following rack server for my business as my hosting co. is having issues. I used httpd (OpenBSD) in the past on larger hot plug raid capable hp servers.
My needs are light now so i am looking at the following and have a couple questions.
PowerEdge R240 Rack Server
https://www.dell.com/en-us/work/shop...7-1f477785a1fb
Questions:
1.) If i plan to use only (1) of the (2) hdd's for httpd website hosting (2)nd simply for
backup of site files etc. do i need.....
Hot plug drives over cabled? (Price vrs ease of replacement in a Raid enviorment).
Note: sites are static with no financial or database critical data storage. (no big deal if sites go down temp)
sites can be re-created quickly with backed up data. i.e. if first drive fails i can install OpenBSD on
(2nd) for httpd while ordering a replacement for the failed (1st) drive.
2.) Software Raid over none?
Do I need their raid software and hd set-up, as I thought it can be created easily if i need it within
OpenBSD install, i.e. set both hd's upon setup in Raid 1 config. during install.
I'm thinking Openbsd should not need their Raid Software or Hot plug set-up...
Am I thinking correctly?

Thanks in advance......

Last edited by frcc; 20th September 2021 at 02:15 AM. Reason: get url correct
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Old 20th September 2021
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jggimi jggimi is offline
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Default

RAID (other than RAID 0) provides some redundancy for select types of drive failures. It isn't a backup solution.

What RAID will do:
  • RAID will keep your system running without data loss only when there is a hardware failure of a disk drive, as long as the type of drive failure is one where the OS can survive and continue operation, such as permanent read failures.
What RAID won't do:
  • RAID will not prevent data loss when either programmatic or operator errors cause overwritten or erased data. Errors are written to the array, redundantly. In fact, RAID will not protect the system from any software errors or operator errors of any kind.
  • RAID will only protect a system from certain types of disk drive hardware failures. All other single points of failure remain. High-Availability ("HA") computing and HA network infrastructures are options to consider either with or without RAID solutions.
Proprietary "Hardware RAID" offerings have one additional consideration that generic software RAID solutions do not. During a failure you will not be able to move drives from the vendor's array to some other storage platform in order to use or recover data. Therefore, you will need to ensure access to spares and ensure you can obtain vendor support over the planned operating lifespan of the array. Consider an extended service contract post-warranty, consider purchasing spare parts in advance, and consider a retainer for consulting services with the vendor's sustaining engineering services. Really.

Last edited by jggimi; 20th September 2021 at 03:25 AM. Reason: clarity
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Old 20th September 2021
frcc frcc is offline
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I did not think about the proprietary aspect of "Hardware Raid" or, their software as well.
For an Enterprise solution it might foot the bill along with a good IT individual or dept. In the past when my needs were much greater I have had Raid along with a hot plug setup restore data when a drive failed, i.e. simply remove and install a new one and the drive was reloaded by the system. But that would have not, "as you correctly mentioned" saved me from a software issue and/or Operator Error.
In a critical or Enterprise situation corporations are advised to go with their contract support and
software/hardware monitoring.

In my situation & adhering to the "KISS" principle, I believe I'll pass on their Raid and hot-plug options.
I believe OpenBSD will support all my httpd needs out of the box with a simple (cost effective) hardware set-up. I don't need a blazing fast processor, large hdd's or goobs of ram.

Thanks again jggimi for the insight, I haven't thought about.
Anyone Else?
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