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From: =?UTF-8?Q?Arne_Vajh=C3=B8j?= <arne@vajhoej.dk>
Newsgroups: comp.os.vms
Subject: Re: RX2800 sporadic disk I/O slowdowns
Date: Fri, 18 Oct 2024 21:12:30 -0400
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In-Reply-To: <vev04j$3hnnq$9@dont-email.me>

On 10/18/2024 8:56 PM, Lawrence D'Oliveiro wrote:
> On Fri, 18 Oct 2024 20:39:33 -0400, Arne Vajhøj wrote:
>> On 10/18/2024 8:35 PM, Lawrence D'Oliveiro wrote:
>>> On Fri, 18 Oct 2024 20:22:23 -0400, Arne Vajhøj wrote:
>>>> On 10/18/2024 8:07 PM, Lawrence D'Oliveiro wrote:
>>>>> Has VMS still not got any equivalent to mdraid?
>>>>
>>>> VMS got volume shadowing in 1986 I believe.
>>>
>>> Relevance being?
>>
>> It is OS provided software RAID.
> 
> Does “volume shadowing” mean just RAID 1?

I believe so.

0, 5, 6 and 10 requires a RAID controller.

Arne