東証の障害、富士通はケシカラン!
品質どうなってんだ。
全然関係ないですが、cf.takeover.on_panicというパラメータについてNetApp社のサイトを調べました。
すると、リリース日が違うけどタイトルが同じな2つのマニュアルを見つけました。
富士通や東証の人が信じていた挙動
Data ONTAP(R) 8.2 High Availability and MetroCluster Configuration Guide For 7-Mode
Part number: 215-07985_A0
May 2013
Enable or disable automatic takeover on panic by entering the following command:
options cf.takeover.on_panic {on|off} on enables immediate takeover of a panicked node. This is the default value. off disables immediate takeover of a panicked node. If you disable this option, normal takeover
procedures apply: if a node panics and stays down without sending messages to its partner for 15
seconds, the partner then automatically takes over the failed node.
→ オフでも15秒後には切り替わるよ!
実際の挙動
Data ONTAP(R) 8.2 High Availability and MetroCluster Configuration Guide For 7-Mode
October 2020 | 215-08524_B0
Enable or disable automatic takeover on panic by entering the following command:
options cf.takeover.on_panic {on|off} If the cf.takeover.on_panic option is set to on, a node panic will cause an automatic takeover. If the cf.takeover.on_panic option is set to off, a node panic will not cause an automatic takeover.
You should not turn this option off unless you are instructed by technical support to do so.
→ オフだと切り替わらないぞ! オフにするな!