Misc changes. Removed extra identity. Added missing "reserved". Changed

		// using cluster versioning to ignore this field in the header and in the setup.)

			optional int64 clusterVersion = 1;

			// The hmac of the request provides the authentication and (indirectly) the authority of the identity.

			// The "identity" identifies the requester and the key and algorithm to be used for hmac. (See security document).

			optional int64 identity = 2;

			// 2 is reserved.

			// A unique number for this connection between the source and target. On the first request

			// to the device, this should be the time of day in seconds since 1970. The device can change this

			// returned.

			optional bool earlyExit = 10;

			// 11 is reserved

			// Priority is a simple integer that determines the priority of this

			// request. All activity at a higher priority will execute before that

			// of lower priority traffic. A higher number is higher priority.

		//key/value entry operation

		message KeyValue {

		// 1 is reserved

		// On a put or delete, this is the next version that the data will be. The version field is opaque to the

		// target. (See Atomic operations document)

			optional bytes newVersion = 2;

			// the system will return "k2" and "k1" in that order.

			optional bool reverse = 6;

			// 7 is reserved;

			//get range response .

			repeated bytes key = 8;

			repeated bytes keys = 8;

		}

		//set up operation.

			// When true, no further error checking should be required.

			optional bool allChildOperationsSucceeded = 3;

			message Operation {

			// 1 and 2 are reserved

			// the key of the entry to move

				optional bytes key = 3;

				// the expected version number in the other machine

		//get log

		message GetLog {

			repeated Type type = 1;

			repeated Type types = 1;

			enum Type {

				INVALID_TYPE = -1; // Must come first, so default is invalid

				UTILIZATIONS = 0;

				DEVICE = 7;

			}

			repeated Utilization utilization = 2;

			repeated Temperature temperature = 3;

			repeated Utilization utilizations = 2;

			repeated Temperature temperatures = 3;

			optional Capacity capacity = 4;

			optional Configuration configuration = 5;

			repeated Statistics statistics = 6;

				// is rejected

				repeated Scope scope = 4;

				enum HMACAlgorithm {

					INVALID_HMAC_ALGORITHM = -1; // Must come first, so default is invalid

					INVALID_HMAC_ALGORITHM = -1; // Must come first

					// 0 is reserved; do not use

					HmacSHA1 = 1; // this is the default

				}

			// The range on the request and results on the response

			optional Range range = 2;

			enum BackOpType {

				INVALID_BACKOP = 0;

				INVALID_BACKOP = -1;

				// Media scan is to check that the user data is readable, and

				// if the end to end integrity is known to the device, if the

				// end to end integrity field is correct.

				MEDIASCAN = 1;

				// This performes optomizations of the media. Things like

				// This performs optimizations of the media. Things like

				// defragmentation, compaction, garbage collection, compression

				// could be things accomplished using the media optimize command.

				MEDIAOPTIMIZE = 2;