當年在科大讀Part-time MBA,慶幸上過林教授的課,而且因為課堂太精彩,我從沒走堂。
那時候已經知道林教授是猛人,但因為他要北京香港兩邊走,所以他的課堂,時間相當飄忽。除了「較固定」的星期六晚七至十的課外,間中還
One of the things that irritate me about ZFS is the interactionbetween snapshots and quotas, specifically that ZFS snapshots countagainst a filesystem's quota. I can only call this robot logic ; it is in a sense completely correct and itprobably simplifies the implementation, but it is not useful .
The problem is that snapshots are a system level thing; having themcount against user quotas is a problem waiting to happen. Considertrying to explain to a user that they have 'run out' of disk spacebecause the
It amuses me how Amazon's EC2 and S3 services are a clever return to theera of timeshared mainframe computing. Not in what is being directlysupplied, but in its economics. Rather than the fixed monthly pricecommon these days, EC2 and S3 charge you a usage based fee for bothstorage and CPU, just as timesharing computing used to.
(Of course, some segments of timesharing computing used to charge youfor anything that moved and they could measure. And did so with ratesmuch