Re: Hi reliability files, writing,reading and maintaining

2006-02-10 Thread Christos Georgiou
On Wed, 08 Feb 2006 00:29:16 +0100, rumours say that Xavier Morel [EMAIL PROTECTED] might have written: You can also nest Raid arrays, the most common nesting are Raid 01 (creating Raid1 arrays of Raid0 arrays), Raid 10 (creating Raid0 arrays of Raid1 arrays), Raid 50 (Raid0 array of Raid5

Hi reliability files, writing,reading and maintaining

2006-02-07 Thread John Pote
Hello, help/advice appreciated. Background: I am writing some web scripts in python to receive small amounts of data from remote sensors and store the data in a file. 50 to 100 bytes every 5 or 10 minutes. A new file for each day is anticipated. Of considerable importance is the long term

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Terry Reedy
John Pote [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I would wish to secure this data gathering against crashes of the OS, I have read about people running *nix servers a year or more without stopping. hardware failures To transparently write to duplicate disks, lookup RAID

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Scott David Daniels
John Pote wrote: Hello, help/advice appreciated. I am writing some web scripts in python to receive small amounts of data from remote sensors and store the data in a file. 50 to 100 bytes every 5 or 10 minutes. A new file for each day is anticipated. Of considerable importance is the long

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Xavier Morel
Terry Reedy wrote: John Pote [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] I would wish to secure this data gathering against crashes of the OS, I have read about people running *nix servers a year or more without stopping. He'd probably want to check the various

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Paul Rubin
John Pote [EMAIL PROTECTED] writes: 1. Are there any python modules 'out there' that might help in securely writing such files. 2. Can anyone suggest a book or two on this kind of file management. (These kind of problems must have been solved in the financial world many times). It's a

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Larry Bates
John Pote wrote: Hello, help/advice appreciated. Background: I am writing some web scripts in python to receive small amounts of data from remote sensors and store the data in a file. 50 to 100 bytes every 5 or 10 minutes. A new file for each day is anticipated. Of considerable

Re: Hi reliability files, writing,reading and maintaining

2006-02-07 Thread Peter Hansen
John Pote wrote: I would wish to secure this data gathering against crashes of the OS, hardware failures and power outages. My first thought when reading this is SQLite (with the Python wrappers PySqlite or APSW). See http://www.sqlite.org where it claims Transactions are atomic,