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Alan Rew's avatar

You say

"A 170 million item catalogue is bound to be very complicated. A replica backup would no doubt be very expensive and hard to maintain"

The process of backing up & restoring large databases is a very old problem solved long ago. I don't know which database software the BL uses, but any database system worth its salt incorporates both full & incremental backups (& the ability to restore them) as a standard feature. I worked on developing such software in the early 1980s.

Backups are not "hard to maintain". The underlying complexity of the process should be hidden from the user by the database software. If backups are hard to maintain that suggests either poor choice of software or inadequate training of IT staff.

I hope that the BL now ensures that all its data is backed up in a way that enables it to be restored quickly in future.

I do sympathise with BL staff. It's not their fault if the systems provided to them are vulnerable or difficult to restore. Government needs to take BL IT infrastructure more seriously. It doesn't help that most government ministers appear to be IT illiterate.

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Stephen Greig's avatar

I am very inadequately qualified in computing to pontificate on the cause of this disaster but my immediate thought was why wasn't the catalogue backed up? 170 million records seems a very small number. I have been playing around with about 2 million records of plant names on my very cheap (£500 ish) computer. I would very much like to read a more technical discussion (but not too technical or I won't understand it!) rather than broad brush political observations. My next immediate thought is why isn't the catalogue in the public domain anyway?? Surely if it is a catalogue us plebs wouldn't benefit that much from being able to see it and we might be able to send the BL a copy next time they loose it.

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