Sujet : Re: RX2800 sporadic disk I/O slowdowns
De : arne (at) *nospam* vajhoej.dk (Arne Vajhøj)
Groupes : comp.os.vmsDate : 21. Oct 2024, 01:13:50
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vf46bu$k0cc$2@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
User-Agent : Mozilla Thunderbird
On 10/20/2024 8:06 PM, Lawrence D'Oliveiro wrote:
On Sun, 20 Oct 2024 19:08:41 -0400, Arne Vajhøj wrote:
Let me try again.
>
DB write to plates & system crash => OK but slow
The DB knows how to make this fast. Remember its cache is faster than any
disk controller.
This is where the DB is writing to plates.
You can add a fourth scenario:
DB write to DB cache & system crash => guaranteed problem with transaction
Arne