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Ksplice: kernel patches without rebootsKsplice: kernel patches without rebootsPosted Apr 30, 2008 2:57 UTC (Wed) by dlang (✭ supporter ✭, #313)In reply to: Ksplice: kernel patches without reboots by gdt Parent article: Ksplice: kernel patches without reboots
there is not much overlap between the set of uses where cost prohibits having redundant hardware and the set of uses where a system cannot be down for a reboot. Many upgrades to Cisco equipment requires a reboot, and they are used in many places that are extremely sensitive to outages
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Ksplice: kernel patches without reboots Posted May 1, 2008 2:33 UTC (Thu) by a9db0 (subscriber, #2181) [Link] Here's one: telecom Big phone switches aren't usually redundant, and are frequently utilized 24x7x365(6). The rise in VoIP has brought this into higher relief, and I'd expect to see some of the telecom folks looking very hard at this. My uptime is never that good - the power around here is way too flaky. Even for my oversized ups.
Ksplice: kernel patches without reboots Posted May 1, 2008 16:42 UTC (Thu) by piggy (subscriber, #18693) [Link] The reason big phone switches have traditionally been non-redundant is that they were staggeringly expensive when first created. The telecom industry is still absorbing the consequences of a 1000X improvement in both price and performance. Reliability of individual components has also dropped by a couple orders of magnitude, so redundancy is becoming the solution of choice. I agree with earlier assertions that the disjunction between businesses who want long uptimes and and those willing to put in redundant equipment is vanishingly small. Perhaps individuals after long uptime for geek-cred are a large enough population to sustain ksplice.
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