[Info-vax] RX2800 sporadic disk I/O slowdowns
Arne Vajhøj
arne at vajhoej.dk
Sun Oct 20 17:23:08 EDT 2024
On 10/20/2024 5:16 PM, Lawrence D'Oliveiro wrote:
> On Sun, 20 Oct 2024 09:17:21 -0400, Arne Vajhøj wrote:
>> On 10/19/2024 11:51 PM, Lawrence D'Oliveiro wrote:
>>> On Sat, 19 Oct 2024 21:52:16 -0400, Arne Vajhøj wrote:
>>>> The context is one where data loss is not acceptable.
>>>
>>> Data loss is unavoidable. If the power goes out, all computations in
>>> progress get lost. There’s no way around that.
>>
>> True, but that is not the issue.
>
> You said it was.
Loss of completed/committed data is the problem.
Work in progress is difficult to avoid loosing - and
it is not really desirable to have half done work
saved.
>> Think transactions.
>
> Which is an entirely separate thing from data loss.
No.
Remember what the D in ACID stands for.
Arne
More information about the Info-vax
mailing list